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08:21 Popular
Two-variable Linear Equations And Their Graphs | Algebra I | Khan Academy

2,052 views / 0 likes - added 8 years ago

Introduction to 2-variable linear equations and their graphs Watch the next lesson: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/v/checking-ordered-pair-solutions-to-equatio
04:58 Popular
Comparing Fractions Of Different Wholes | Fractions | 3th Grade | Khan Academy

1,473 views / 0 likes - added 8 years ago

Comparing fractions of different wholes Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-fractions-topic/cc-3rd-different-wholes/e/naming-the-whole?utm_source=YT&utm_medium=Desc&utm_ca
04:10
How Scientists Are Making 'Sonic' Black Holes in a Lab

459 views / 0 likes - added 4 years ago

In order to test Hawking radiation, scientists created their own artificial black hole using sound. But how?Can Hawkings Black Hole Paradox Be Solved With Fuzzballs?https://youtu.be/esPa1tVSjewRead More: What Sonic Black Holes Say About Real Oneshttps://w
02:36 Popular
Converting Decimals To Percents | Decimals | Pre-Algebra | Khan Academy

1,527 views / 0 likes - added 8 years ago

Need to convert a decimal to a percent? Ok, we'll just use our fraction friends to get us there. Watch and be amazed. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/percent-intro-p
02:36 Popular
Number Patterns: Seeing Relationships | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,041 views / 0 likes - added 8 years ago

Laying the foundation for algebraic thinking by learning to recognize the relationships between patterns and graphing out those relationships. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applyin
02:38 Popular
Adding 5 + 3 + 6 | Addition And Subtraction Within 20 | Early Math | Khan Academy

717 views / 0 likes - added 8 years ago

Learn how to add 5 + 3 + 6. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-add-20/e/adding-three-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath W
03:06
Will Robot Spy Gorilla Be Welcomed By The Great Silverback?

360 views / 0 likes - added 4 years ago

"Spy in the Wild 2" While a young mountain gorilla just wants to play with our Spy Gorilla will the Silverback be so welcoming? Spy Gorilla offers a hand Of friendship! ***DON'T FORGET TO SUBSCRIBE OUR CHANNEL*** For those in the UK you can watch the 1st
06:20 Popular
Greatest Common Factor Explained | Factors And Multiples | Pre-Algebra | Khan Academy

1,181 views / 0 likes - added 8 years ago

Here's a nice explanation of least common factor (or least common divisor) along with a few practice example exercises. Let's roll. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/factors-multiples/
05:06
The New Mars Rover Is The Most Advanced Yet, Here's Why

322 views / 1 likes - added 3 years ago

We've set our sights on Mars once again with NASAs Perseverance rover due to launch in the summer of 2020. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsPlaylist Visit our shop at http://shop.seeker.com Sinc
02:37
VIETNAM, Waterfalls: Amazing Planet (4K) 2020

312 views / 0 likes - added 3 years ago

Ban Gioc Falls, Vietnam by Filip Kulisev Filip Kulisev strives to find and photograph the most wonderful and unique sites of our planet for the benefit of all nature lovers in Slovakia and around the world. Through his photographs he has raised awareness
03:46
This Chemical Does Nothing, But It's Still Bad For You

99 views / 0 likes - added 8 months ago

Check out the MinuteFood video on Teflon here: https://youtu.be/R1hbV3EzOD4PFAS - also known as the forever chemicals we use in all sorts of household products - are able to cause all sorts of health problems without ever really reacting with anythingLEAR
09:00
Why 99% of ocean plastic pollution is "missing"

336 views / 0 likes - added 3 years ago

The plastic we dump into the ocean might be hiding in plain sight. Subscribe to our channel! http://goo.gl/0bsAjOVox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out htt
01:37 Popular
Translation Example | Transformations | Geometry | Khan Academy

1,655 views / 0 likes - added 8 years ago

Translation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-translations-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_campa
14:34
Florence and the Renaissance: Crash Course European History #2

565 views / 0 likes - added 4 years ago

The Renaissance was a cultural revitalization that spread across Europe, and had repercussions across the globe, but one smallish city-state in Italy was in many ways the epicenter of the thing. Florence, or as Italians might say, Firenze, was the home to
01:55 Popular
Drawing Image Of Translation | Transformations | Geometry | Khan Academy

1,192 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-translations/e/translations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://www.khanacademy.org
02:27 Popular
Inequality Word Problem: One Variable | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,043 views / 0 likes - added 8 years ago

This time we're creating a variable to represent a number, and then writing an inequality. We're building on our knowledge. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-to
04:19 Popular
Place Value Example With 42 | Place Value (tens And Hundreds) | Early Math | Khan Academy

789 views / 0 likes - added 8 years ago

Learn to see 42 as 4 tens and 2 ones. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/cc-early-math-tens/e/groups-of-tens?utm_source=YT&utm_medium=Desc&utm_campaign=Ea
01:25 Popular
Using Rotation Widget | Transformations | Geometry | Khan Academy

1,495 views / 0 likes - added 8 years ago

Using rotation widget Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-rotations-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_campai
04:24 Popular
Example Of Subtracting Fractions With Unlike Denominators | Fractions | Pre-Algebra | Khan Academy

1,658 views / 0 likes - added 8 years ago

If you conquered adding fractions with different denominators, then subtracting fractions will be a snap. Don't worry...we'll take it slow and explain every step. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math
02:35 Popular
Dividing Whole Numbers And Fractions: Studying | Fractions | Pre-Algebra | Khan Academy

2,109 views / 0 likes - added 8 years ago

Solve a word problem by dividing a fraction by a whole number. The example used in this video is 1/5 ÷ 4. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/dividing-fractions-pre-alg
15:33 Popular
Democracy, Authoritarian Capitalism, and China: Crash Course World History 230

898 views / 1 likes - added 9 years ago

In which John Green teaches you about the end of World History, and the end of the world as we know it, kind of. For the last hundred years or so, it seemed that one important ingredient for running an economically successful country was a western-style d
02:55 Popular
Place Value Example With 25 | Place Value (tens And Hundreds) | Early Math | Khan Academy

715 views / 0 likes - added 8 years ago

Learn to see 25 as 2 tens and 5 ones. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/cc-early-math-tens/e/groups-of-tens?utm_source=YT&utm_medium=Desc&utm_campaign=Ea
04:31 Popular
Counting American Coins | Measurement And Data | Early Math | Khan Academy

738 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-money/v/counting-dollars?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: htt
08:17
What is Radioactivity and Is It Always Harmful: Explained in Really Simple Words

141 views / 0 likes - added 1 year ago

Radioactivity is the property through which a heavier, unstable nucleus assumes a more stable state by emitting radiation. The process through which a nucleus turns into a stable one is called radioactive decay. But is radioactivity or radioactive radiati
01:58 Popular
Counting In Order | Counting | Early Math | Khan Academy

920 views / 0 likes - added 8 years ago

Learn how to count without making mistakes. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-counting/e/counting-objects?utm_source=YT&utm_medium=Desc&utm_ca
19:05
The Simple Genius of the Interstate Highway System

211 views / 0 likes - added 2 years ago

Sign up for a CuriosityStream subscription and also get a free Nebula subscription (the streaming platform built by creators) here: http://CuriosityStream.com/wendoverWatch a Nebula-exclusive companion video to this here: https://nebula.app/videos/wendove
Irrigate like its 2000 BC with these easy DIY terracotta watering pots called ollas

172 views / 0 likes - added 2 years ago

Make an Olla (pronounced oi-ya)Ollas have been used for thousands of years in agriculture and gardening practices and are traditionally unglazed terracotta jugs filled with water and buried into the soil, with their necks protruding slightly. Once the por
07:51 Popular
Volume: How To Measure It | Measurement | Pre-Algebra | Khan Academy

786 views / 0 likes - added 8 years ago

Volume is a measurement in the 3rd dimension. This means that it not only has width and height, but it has depth as well. Let's watch this video in which we get a great explanation of how we measure volume. Practice this lesson yourself on KhanAcademy.org
02:04 Popular
Compose Shapes | Geometry | Early Math | Khan Academy

781 views / 0 likes - added 8 years ago

Learn how to combine shapes to make other shapes. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-composing-shapes/e/compose-shapes?utm_source=YT&utm_medium
08:34 Popular
LCM And GCF Word Problems | Factors And Multiples | Pre-Algebra | Khan Academy

1,857 views / 1 likes - added 8 years ago

Here we have a couple of word problems--one searching for the least common multiple and the other for the greatest common factor. Just read them with us slowly and follow along. You'll get it. Practice this lesson yourself on KhanAcademy.org right now: ht
01:44 Popular
Interpreting Two-way Tables | Data And Modeling | 8th Grade | Khan Academy

1,728 views / 0 likes - added 8 years ago

Learn how to read two-way tables. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-counting/v/counting-with-small-numbers?utm_source=YT&utm_medium=Desc&utm_c
03:53
Adding 7 + 6 | Addition And Subtraction Within 20 | Early Math | Khan Academy

660 views / 0 likes - added 8 years ago

Learn how to add 7 + 6 using the number line. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-add-20/e/addition_2?utm_source=YT&utm_medium=Desc&utm_campaign=Ear
03:19 Popular
Adding 8 + 7 | Addition And Subtraction Within 20 | Early Math | Khan Academy

713 views / 0 likes - added 8 years ago

Learn how to add 8 + 7 by making a group of ten. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-add-20/e/addition_2?utm_source=YT&utm_medium=Desc&utm_campaign=
03:45 Popular
Visualizing Equivalent Fractions | Fractions | Pre-Algebra | Khan Academy

1,097 views / 0 likes - added 8 years ago

To understand equivalent fractions it helps to "see" the fractions using something like a grid with shaded and unshaded sections representing the fraction. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-al
02:36 Popular
Counting By Tens Examples | Addition And Subtraction Within 100 | Early Math | Khan Academy

841 views / 0 likes - added 8 years ago

Learn to count by tens. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-skip-counting/e/skip-counting-by-10s?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMa
04:38
[OFFICIAL VIDEO] Waving Through A Window - Pentatonix

531 views / 0 likes - added 5 years ago

GET 'WAVING THROUGH A WINDOW' NOW! https://smarturl.it/WTAW?iQid=ytiTunes - https://smarturl.it/WTAW/itunes?iQid=ytApple Music - https://smarturl.it/WTAW/applemusic?iQid=ytSpotify - https://smarturl.it/WTAW/spotify?iQid=ytAmazon - https://smarturl.it/WTAW
03:40 Popular
Multi-step Word Problem With Decimals And Subtraction | Pre-Algebra | Khan Academy

1,631 views / 0 likes - added 8 years ago

First visualize this word problem then use subtraction and multiplication of decimals and fractions to get at the answer. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topi
08:13 Popular
Points After Rotation | Transformations | Geometry | Khan Academy

1,125 views / 1 likes - added 8 years ago

Points after rotation Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/rotations-1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://w
05:59 Popular
Introduction To Place Value | Place Value (tens And Hundreds) | Early Math | Khan Academy

1,012 views / 1 likes - added 8 years ago

Learn why we use a "ones place" and a "tens place" when writing numbers. This video uses the number 37 as an example. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/c
02:46 Popular
Defining Rotation Example | Transformations | Geometry | Khan Academy

1,700 views / 0 likes - added 8 years ago

Defining rotation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/defining-rotations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson
03:36
Addition Using Groups Of 10 Intro | Addition And Subtraction Within 100 | Early Math | Khan Academy

694 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-making-groups-of-ten/e/making-100?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: h
02:49 Popular
Skip Counting By 100 Example | Addition And Subtraction Within 100 | Early Math | Khan Academy

807 views / 0 likes - added 8 years ago

Learn to count by hundreds. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-skip-counting/e/skip-counting-by-100s?utm_source=YT&utm_medium=Desc&utm_campaign=Ea
05:05
Can Hawking’s Black Hole Paradox Be Solved With Fuzzballs?

513 views / 1 likes - added 5 years ago

Our current ideas about black holes present some interesting paradoxes. Could this unusual black hole model solve them? Why Don’t We Have a Photo of a Black Hole Yet? - https://youtu.be/7fFL9oLNJOI Read More: The Fuzzball Fix for a Black Hole Paradox http
02:12 Popular
Fewer Word Problems | Addition And Subtraction Within 100 | Early Math | Khan Academy

863 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-more-fewer-100/e/addition-and-subtraction-word-problems-within-100--level-3?utm_source=YT&utm_medium=Desc&utm_c
03:18 Popular
Counting Dollars | Measurement And Data | Early Math | Khan Academy

717 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-money/v/counting-dollars?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: htt
02:28
Scientists Just Used a Tractor Beam to Levitate the Largest Object Yet

453 views / 0 likes - added 6 years ago

The world’s most powerful tractor beam just lifted a 2 centimeter ball, but could it make levitating humans a reality? One Shot Could Provide All the Vaccines You'll Ever Need - https://youtu.be/qQ1VKYX4Vl0 Thumbnail image courtesy of University of Bristo
10:32 Popular
Rotating About Arbitrary Point | Transformations | Geometry | Khan Academy

869 views / 0 likes - added 8 years ago

Rotating about arbitrary point Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/rotations-2?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson:
03:37
Starfish Rulers | Addition And Subtraction Within 100 | Early Math | Khan Academy

686 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-more-fewer-100/e/addition-and-subtraction-word-problems-within-100--level-4?utm_source=YT&utm_medium=Desc&utm_c
02:53 Popular
More Word Problems | Addition And Subtraction Within 100 | Early Math | Khan Academy

940 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-more-fewer-100/e/addition-and-subtraction-word-problems-within-100--level-3?utm_source=YT&utm_medium=Desc&utm_c
01:48 Popular
Using Reflection Tool | Transformations | Geometry | Khan Academy

1,172 views / 0 likes - added 8 years ago

Using reflection tool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-reflections-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_camp
02:32 Popular
Dividing Whole Numbers And Fractions: Potpourri | Fractions | Pre-Algebra | Khan Academy

1,783 views / 0 likes - added 8 years ago

Solve a word problem by dividing a whole number by a fraction. The example used in this video is 4 ÷ 1/5. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/dividing-fractions-pre-alg
03:23 Popular
Spots On A Die | Addition And Subtraction Within 100 | Early Math | Khan Academy

759 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-more-fewer-100/e/addition-and-subtraction-word-problems-within-100--level-4?utm_source=YT&utm_medium=Desc&utm_c
02:50 Popular
Adding By Getting To Group Of 10 First | Early Math | Khan Academy

735 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-making-groups-of-ten/e/making-100?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: h
04:06 Popular
Making 5 | Basic Addition And Subtraction | Early Math | Khan Academy

1,262 views / 0 likes - added 8 years ago

Learn how to add numbers to make 5. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-making-5-9/e/making-five?utm_source=YT&utm_medium=Desc&utm_campaign=Earl
02:25 Popular
Halves And Fourths | Geometry | Early Math | Khan Academy

790 views / 0 likes - added 8 years ago

Learn how to divide shapes into two or four equal sections. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-fractions-of-shapes/e/halves-and-fourths?utm_sou
03:39 Popular
Introduction To Subtraction | Basic Addition And Subtraction | Early Math | Khan Academy

754 views / 0 likes - added 8 years ago

Learn what it means to subtract. The examples used in this video are 4-3 and 5-2. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-sub-intro/e/subtractio
13:38
Reformation and Consequences: Crash Course European History #7

482 views / 0 likes - added 4 years ago

The Protestant Reformation didn't exactly begin with Martin Luther, and it didn't end with him either. Reformers and monarchs changed the ways that religious and state power were organized throughout the 16th and early 17th centuries. Jean Calvin in Franc
02:37 Popular
Order By Length | Measurement And Data | Early Math | Khan Academy

1,674 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-length-intro/e/order-by-length?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesso
03:00 Popular
Teens As Sums With 10 | Place Value (tens And Hundreds) | Early Math | Khan Academy

727 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/cc-early-math-teens/e/teen-numbers-1?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: https:
05:41 Popular
Points On Line Of Reflection | Transformations | Geometry | Khan Academy

1,318 views / 0 likes - added 8 years ago

Points on line of reflection Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/e/defining-reflections?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next
02:03 Popular
Comparing Numbers Of Objects | Counting | Early Math | Khan Academy

1,030 views / 1 likes - added 8 years ago

Learn what "more than" and "less than" mean. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-comparing-numbers/e/compare-groups-through-10?utm_source=YT&utm
04:40 Popular
Measuring Lengths 2 | Measurement And Data | Early Math | Khan Academy

750 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-measuring-length/e/measuring-lengths-2?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the ne
01:32 Popular
Formal Translation Tool Example | Transformations | Geometry | Khan Academy

1,292 views / 0 likes - added 8 years ago

Formal translation tool example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-translations/e/defining-translations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the
07:19 Popular
Reflecting Segments Over Line | Transformations | Geometry | Khan Academy

974 views / 0 likes - added 8 years ago

Reflecting segments over line Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/e/reflections-1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesso
00:59 Popular
Average Height Of A Building's Floor | Multiplication And Division | 3th Grade | Khan Academy

968 views / 0 likes - added 8 years ago

Learn how to use the Khan Academy number line widget. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-fractions-topic/cc-3rd-fractions-on-the-number-line/e/fractions_on_the_number_lin
02:49 Popular
Percent Word Problem Example 2 | Decimals | Pre-Algebra | Khan Academy

1,182 views / 0 likes - added 8 years ago

It's nice to practice conversion problems, but how about applying our new knowledge of percentages to a real life problem like recycling? Hint: don't forget your long division! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanac
04:03
Subtracting 14 - 6 | Addition And Subtraction Within 20 | Early Math | Khan Academy

694 views / 0 likes - added 8 years ago

Learn how to subtract 14 - 6 by first thinking about subtracting 2 and 4. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-sub-20/e/subtraction_2?utm_source=YT&u
02:10 Popular
Subtract Tens Exercise | Addition And Subtraction Within 100 | Early Math | Khan Academy

723 views / 1 likes - added 8 years ago

Learn how to add and subtract tens. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens/e/subtract-tens?utm_source=YT&utm_medium=Desc&utm_campaign=Ea
02:16
Telling Time Exercise Example 2 | Measurement And Data | Early Math | Khan Academy

679 views / 0 likes - added 8 years ago

Tell time on unlabeled analog clocks. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-time/e/telling_time?utm_source=YT&utm_medium=Desc&utm_campaign=Ear
05:45 Popular
Hypergolic Fuels – The Chemistry Of A Rocket Launch

703 views / 0 likes - added 8 years ago

Chemist Andrea Sella combines dimethylhydrazine with dinotrogen tetroxide to show how hypergolic mixtures fire rockets into space. Part of A Place Called Space, our 2015 advent calendar: http://rigb.org/advent Subscribe for regular science videos: http://
06:09 Popular
Recognizing Shapes | Geometry | Early Math | Khan Academy

1,264 views / 1 likes - added 8 years ago

Learn how to identify circles, triangles, squares, rectangles, rhombuses, and trapezoids. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-shapes/e/naming-sh
04:56 Popular
Equal Sign | Addition And Subtraction Within 20 | Early Math | Khan Academy

781 views / 0 likes - added 8 years ago

Learn what the equals sign really means. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-equals-sign/e/meaning-of-equal-sign-1?utm_source=YT&utm_medium=Desc&utm
03:21 Popular
Rational Number Word Problem With Fractions | Pre-Algebra | Khan Academy

1,717 views / 0 likes - added 8 years ago

Word problems force us to put concepts to work using real-world applications. In this example, determine the volume of frozen water and express the answer as a fraction. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.o
02:34 Popular
Adding Two-digit Numbers Without Regrouping | Early Math | Khan Academy

998 views / 1 likes - added 8 years ago

Learn to add 23 + 45 thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-subtract-100/e/addition_3?utm_source=YT&utm_medium=Desc&ut
02:05 Popular
Skip Counting By 5 Example | Addition And Subtraction Within 100 | Early Math | Khan Academy

772 views / 0 likes - added 8 years ago

Learn to count by fives. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-skip-counting/e/skip-counting-by-5s?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMa
03:52 Popular
Ben Eater Eats The Numbers | Counting | Early Math | Khan Academy

1,223 views / 0 likes - added 8 years ago

Learn how to find which numbers are missing in a number grid. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-numbers-120/e/count-from-any-number?utm_source
04:19
Snow On Friday | Addition And Subtraction Within 100 | Early Math | Khan Academy

659 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-sub-100-word-problems/e/addition-and-subtraction-word-problems-within-100--level-2?utm_source=YT&utm_medium
02:54 Popular
Measuring Lengths With Different Units | Measurement And Data | Early Math | Khan Academy

1,324 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-measuring-length/e/measuring-lengths-with-different-units?utm_source=YT&utm_medium=Desc&utm_campaign=Ear
01:54 Popular
Missing Numbers Between 0 And 120 | Counting | Early Math | Khan Academy

1,381 views / 0 likes - added 8 years ago

Learn how to find missing numbers between 0 and 120. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-numbers-120/e/count-to-100?utm_source=YT&utm_medium=Des
03:38 Popular
Sea Monsters And Superheroes | Addition And Subtraction Within 20 | Early Math | Khan Academy

740 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-word-problems-within-20/e/addition-and-subtraction-word-problems-within-20--level-1?utm_source=YT&utm_medium=Des
04:25 Popular
Using Crayons | Addition And Subtraction Within 100 | Early Math | Khan Academy

863 views / 1 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-sub-100-word-problems/e/addition-and-subtraction-word-problems-within-100--level-2?utm_source=YT&utm_medium
04:28 Popular
Adding And Subtracting On Number Line Word Problems | Early Math | Khan Academy

1,428 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-sub-100-word-problems/e/adding-and-subtracting-on-the-number-line-word-problems?utm_source=YT&utm_medium=De
13:20
CERNs Ambitious Plan to Build the Largest Particle Smasher Ever

418 views / 0 likes - added 5 years ago

The LHC is the worlds largest particle collider, but has it hit its limit? An international community of physicists are calling for a new CERN discovery machine that can reach even higher collision energies and potentially unlock the biggest mysteries of
02:37 Popular
Understanding Place Value When Subtracting Tens | Early Math | Khan Academy

940 views / 0 likes - added 8 years ago

Learn how to subtract 40 from 65 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens/e/subtract-with-in-100-level-1?ut
05:32
Exercising Gorillas | Addition And Subtraction Within 20 | Early Math | Khan Academy

692 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-word-problems-within-20/e/addition-and-subtraction-word-problems-within-20--level-2?utm_source=YT&utm_medium=Des
01:31 Popular
Comparing Small Numbers On The Number Line | Counting | Early Math | Khan Academy

1,625 views / 0 likes - added 8 years ago

Learn to use a number line to compare numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-comparing-numbers/e/comparing-numbers-through-10?utm_source=Y
08:53
The Science Behind The World's Fastest Shoe - Cheddar Explains

235 views / 1 likes - added 2 years ago

Nike introduced the Vaporfly in the 2016 Olympics to Nike-sponsored athletes, three of whom took the top spots in marathon events. Since then, the shoe has been the weapon of choice of elite athletes like those competing in the 2022 Boston Marathon. Why?
05:50 Popular
Length Word Problems | Measurement And Data | Early Math | Khan Academy

935 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-length-word-problems/e/length-word-problems?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch t
03:23 Popular
Comparison Word Problems | Addition And Subtraction Within 20 | Early Math | Khan Academy

933 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-word-problems-more-fewer-20/e/addition-and-subtraction-word-problems-within-20--level-3?utm_source=YT&utm_medium
01:13 Popular
Counting In Pictures | Counting | Early Math | Khan Academy

758 views / 0 likes - added 8 years ago

Learn how to count the number of objects you see in pictures. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-count-object-topic/e/counting-in-scenes?utm_so
03:05 Popular
Equal Parts Of Circles And Rectangles | Geometry | Early Math | Khan Academy

1,366 views / 1 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-fractions-of-shapes/e/equal-parts-of-circles-and-rectangles?utm_source=YT&utm_medium=Desc&utm_campaign=Early
03:31
Fence Posts For Horses | Addition And Subtraction Within 100 | Early Math | Khan Academy

687 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-sub-100-word-problems/e/addition-and-subtraction-word-problems-within-100--level-1?utm_source=YT&utm_medium
03:11
Introduction To Addition | Basic Addition And Subtraction | Early Math | Khan Academy

672 views / 0 likes - added 8 years ago

Learn what it means to add. The examples used in this video are 1+1 and 2+3. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-sub-intro/e/addition_1?utm_
03:07 Popular
Comparing Lengths | Measurement And Data | Early Math | Khan Academy

1,563 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-compare-estimate-length/e/comparing-lengths?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch t
04:01 Popular
Comparing Values With Calculator | Numbers And Operations | 8th Grade | Khan Academy

1,161 views / 0 likes - added 8 years ago

Learn how to compare 22.9% to √0.45 using a calculator. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-approximating-irrational-numbers/e/approximating-irr
07:23 Popular
Introduction To Transformations | Transformations | Geometry | Khan Academy

1,754 views / 0 likes - added 8 years ago

Introduction to transformations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-translations-on-the-coordinate-plane?utm_source=YT&utm_medium=De
00:44 Popular
Count By Category | Counting | Early Math | Khan Academy

779 views / 0 likes - added 8 years ago

Learn to count the number of things in different categories. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-comparing-numbers/e/sort-groups-by-count?utm_so
Official World Record! Fantastic Classical Music Medley played by a Train | Miniatur Wunderland

147 views / 0 likes - added 2 years ago

New GUINNESS WORLD RECORD Title! The best of classical music, played by a train. Take part in our three challenges: 1. How many songs are being played?2. Which songs? 3. How many glasses were used in total? A little hint: We used melodies from Wolfgang Am
04:11
This Adorable Sea Slug is a Sneaky Little Thief | Deep Look

631 views / 1 likes - added 5 years ago

Take the PBSDS survey: https://to.pbs.org/2018YTSurvey Explore our VR slug and support us on Patreon! https://www.patreon.com/deeplook Nudibranchs may look cute, squishy and defenseless ... but watch out. These brightly-colored sea slugs aren't above stea
01:45 Popular
Counting Dogs, Mice, And Cookies | Counting | Early Math | Khan Academy

753 views / 0 likes - added 8 years ago

Learn how to count animals organized in different patterns. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-count-object-topic/e/how-many-objects-2?utm_sour
02:51
Telling Time Exercise Example 1 | Measurement And Data | Early Math | Khan Academy

656 views / 0 likes - added 8 years ago

Tell time on a labeled analog clock. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-time/e/telling_time_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=
01:31 Popular
Filling Rectangles With Squares | Geometry | Early Math | Khan Academy

1,183 views / 0 likes - added 8 years ago

Learn how to fill rectangles with squares. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-fractions-of-shapes/e/filling-rectangles-with-same-sized-squares?
04:10 Popular
Approximating With Powers Of 10 | Numbers And Operations | 8th Grade | Khan Academy

1,180 views / 0 likes - added 8 years ago

Learn how to approximate how much larger the world population was than the US population in 2014. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-orders-of-
11:58
The Biggest Science of the DECADE (2010-2019)

361 views / 0 likes - added 4 years ago

A decade in review: the black hole, crispr pigs, DIY elephant toothpaste? What was the biggest science stories of 2010 - 2019. Subscribe for videos next DECADE! http://bit.ly/asapsciCreated by: Mitchell Moffit and Gregory BrownFOLLOW US!GregInstagram: htt
03:59 Popular
Adding Ten Or One Hundred | Addition And Subtraction Within 100 | Early Math | Khan Academy

827 views / 1 likes - added 8 years ago

Learn how to add 1, 10, or 100 to a number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-ones-tens-hundreds/e/add-within-1000--level-1?utm_source=YT&utm
02:57 Popular
Reading Bar Graph Examples | Measurement And Data | Early Math | Khan Academy

1,637 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-bar-graphs/e/solving-problems-with-bar-graphs-1?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Wat
03:09 Popular
Making Line Plots | Measurement And Data | Early Math | Khan Academy

1,163 views / 0 likes - added 8 years ago

Making line plots. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-line-plots/e/creating-line-plots-1?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMa
01:03 Popular
Counting Whales, Sheep, And Flowers | Counting | Early Math | Khan Academy

751 views / 0 likes - added 8 years ago

Learn how to count animals. Animals in these pictures are organized neatly. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-count-object-topic/e/how-many-ob
02:03 Popular
Estimating Lengths | Measurement And Data | Early Math | Khan Academy

725 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-compare-estimate-length/e/estimating-lengths?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch
04:19
Cousin Fal's Shape Collection | Geometry | Early Math | Khan Academy

694 views / 0 likes - added 8 years ago

Learn how to classify shapes based on their number of sides, number of corners, and side-lengths. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-shapes/e/n
03:16
Understanding Place Value While Adding Tens | Early Math | Khan Academy

628 views / 0 likes - added 8 years ago

Learn how to add 23 + 30 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-ones-tens/e/add-within-100--level-1?utm_source=YT&u
01:43 Popular
Solving Problems With Bar Graphs 2 | Measurement And Data | Early Math | Khan Academy

1,341 views / 1 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-bar-graphs/e/solving-problems-with-bar-graphs-2?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Wat
04:40
Where Does Maple Syrup Come From? | Winter is Alive! | SciShow Kids

252 views / 0 likes - added 2 years ago

Teachers and parents: scroll down to check out the Next Generation Science Standards (NGSS) for this episode!Jessi and Squeaks are eating some pancakes and learning all about their favorite pancake topping: maple syrup! Learn how maple trees use air, wate
04:58 Popular
Number Grid | Counting | Early Math | Khan Academy

978 views / 0 likes - added 8 years ago

In our introductory video to counting, Sal goes through all the numbers from 0 to 100, so we can start to see some interesting patterns. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-
03:37 Popular
Adding Hundreds, Tens, And Ones | Addition And Subtraction Within 100 | Early Math | Khan Academy

940 views / 0 likes - added 8 years ago

Learn how to add three-digit numbers by adding ones, tens, and hundreds. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-ones-tens-hundreds/e/add-within-10
02:10 Popular
Repeated Addition Example | Addition And Subtraction Within 100 | Early Math | Khan Academy

730 views / 0 likes - added 8 years ago

Learn how to solve word problems by adding the same number many times. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-skip-counting/e/repeated-addition?utm_so
02:45 Popular
Understanding Place Value While Subtracting Ones | Early Math | Khan Academy

989 views / 0 likes - added 8 years ago

Learn how to subtract 4 from 46 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens/e/subtract-with-in-100-level-1?utm
02:41 Popular
Multiplying Multiples Of Powers Of 10 | Numbers And Operations | 8th Grade | Khan Academy

1,137 views / 0 likes - added 8 years ago

Learn how to multiply (9 * 10^9) (-2 * 10^-3). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-orders-of-magnitude/e/orders-of-magnitude?utm_source=YT&utm_m
03:33 Popular
Losing Tennis Balls | Addition And Subtraction Within 100 | Early Math | Khan Academy

742 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-sub-100-word-problems/e/addition-and-subtraction-word-problems-within-100--level-1?utm_source=YT&utm_medium
04:11 Popular
Subtracting Ten Or One Hundred | Addition And Subtraction Within 100 | Early Math | Khan Academy

2,216 views / 0 likes - added 8 years ago

Learn how to subtract 1, 10, or 100 from a number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens-hundreds/e/subtract-within-1000--level-1?utm_s
02:17 Popular
Pieces Of Fruit | Basic Addition And Subtraction | Early Math | Khan Academy

986 views / 0 likes - added 8 years ago

Learn how to add fruit (by putting fruit together) and sutract fruit (by taking fruit away). Examples used are 5+3 and 5-3. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basic
05:37 Popular
Linear Models Example 2 | Algebra I | Khan Academy

1,152 views / 0 likes - added 8 years ago

Marbles and water in tank Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/constructing-and-interpreting-linear-functions?utm_s
02:00 Popular
Adding To 10 | Basic Addition And Subtraction | Early Math | Khan Academy

1,366 views / 0 likes - added 8 years ago

Learn that if we have 3 bananas, then we need 7 more bananas to make 10 bananas. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-make-10/e/making-ten-2?utm_
04:07 Popular
Adding And Subtracting Negative Numbers | Pre-Algebra | Khan Academy

1,338 views / 0 likes - added 8 years ago

Learn how to add and subtract negative numbers. The problems solved in this video are 2 - 3 = -1 and -2 - 3 = -5 and -2 + 3 = 1 and 2 - (-3) = 5 and -2 - (-3). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pr
09:29
How to Listen to Classical Music: Fugues

624 views / 0 likes - added 5 years ago

A Complete Introduction to Fugues. This video looks at Fugues, and how they work. It considers the great fugues of Bach, as well as surveying fugue from Britten to Bernstein, Handel to Beethoven. It looks at fugal technique - the exposition, subject, answ
02:36 Popular
Understanding Place Value When Adding Ones | Early Math | Khan Academy

1,027 views / 0 likes - added 8 years ago

Learn how to add 37 + 2 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-add-ones-tens/e/add-within-100--level-1?utm_source=YT&ut
03:12 Popular
Subtracting Hundreds, Tens, And Ones | Early Math | Khan Academy

1,072 views / 0 likes - added 8 years ago

Learn how to subtract three-digit numbers by subtracting ones, tens, and hundreds. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens-hundreds/e/sub
03:27
The Physics of Windmill Design

224 views / 0 likes - added 3 years ago

This video was created in partnership with Bill Gates, inspired by his new book How to Avoid a Climate Disaster. Find out more here: https://gatesnot.es/3u7UUVUThis video is about how physics dictates the design of modern windmills - why they are so big,
04:46 Popular
Dolby Presents: Escape, an animated short

795 views / 0 likes - added 6 years ago

Learn more about Dolby Laboratories http://www.dolby.com To purchase MagicMe by Imogen Heap http://www.imogenheap.com/magicme/ Like us on Facebook http://www.facebook.com/dolby Follow us on Twitter http://www.twitter.com/dolby A cinematic poem about the w
02:40 Popular
Interpreting Linear Formulas Example 1 | Algebra I | Khan Academy

2,244 views / 0 likes - added 8 years ago

Interpreting a linear formula Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/interpreting_linear_functions/e/interpreting-features-of-linear-functions?ut
03:53 Popular
Missing Number For Addition And Subtraction Within 1000 | 3th Grade | Khan Academy

1,826 views / 1 likes - added 8 years ago

Learn how to solve missing number problems like ___ + 261 = 630. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-add-sub-topic/cc-3rd-add-sub-missing-value/e/find-the-missing-number--
01:07 Popular
How To Match Function Input To Output Given The Graph (example) | Algebra I | Khan Academy

1,084 views / 0 likes - added 8 years ago

Sal finds the input value for which g(x)=-2 given the graph of g. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inputs_outputs?utm_so
04:05 Popular
The Sound of Silence - Pentatonix

995 views / 4 likes - added 5 years ago

GET ‘THE SOUND OF SILENCE' NOW! http://smarturl.it/TS0Sptx?IQid=yt iTunes - http://smarturl.it/TS0Sptx/itunes?IQid=yt Apple Music - http://smarturl.it/TS0Sptx/applemusic?IQid=yt Spotify - http://smarturl.it/TS0Sptx/spotify?IQid=yt Amazon - http://sm
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01:54 Popular
Getting To 10 By Filling Boxes | Basic Addition And Subtraction | Early Math | Khan Academy

796 views / 0 likes - added 8 years ago

Learn how to add two numbers to make 10. This video shows two examples: 3 + ___ = 10 and 6 + ___ = 10. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-make-
02:06 Popular
Relating Addition And Subtraction | Basic Addition And Subtraction | Early Math | Khan Academy

950 views / 0 likes - added 8 years ago

See the relationship between 2+3=5, 5-2=3, and 5-3=2. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-subtract-10/e/relate-addition-and-subtraction?utm_
01:40 Popular
How To Match Function Input To Output Given The Formula (example) | Algebra I | Khan Academy

1,012 views / 0 likes - added 8 years ago

Sal finds the input value for which f(t)=13, given that f(t)=-2t+5. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inputs_outputs?utm_
03:39
Some People Are Programmed to Sleep Better Than Others

664 views / 0 likes - added 6 years ago

Do you have a hard time getting a good night's sleep? According to scientists, it's all in your genes. The Danger Of Staying In Bed Too Long - https://youtu.be/3g6-ZMEexHI Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Special thanks to Sq
08:52 Popular
Linear Models Example 1 | Algebra I | Khan Academy

1,922 views / 0 likes - added 8 years ago

Linear model for book reading Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/constructing-and-interpreting-linear-functions?u
03:47
Will Your Country Be The First To Sink?

510 views / 1 likes - added 5 years ago

Sea levels are rising, but what does that mean for where you live? What does that mean for the world? With the oceans expanding on to land, which countries need to start preparing to lose their beaches. ► Technology in 100 Years?: https://www.youtube.com/
13:14
Expansion and Resistance: Crash Course European History #28

528 views / 0 likes - added 4 years ago

In 19th century Europe, with nation building well under way, thoughts turned outward, toward empire. This week, we're looking at how Europeans expanded into Africa, Asia, and Oceania during the 1800s. You'll learn about China and the Opium War, British In
02:19 Popular
How To Determine The Domain Of A Modeling Function (example With A Function) | Khan Academy

1,266 views / 0 likes - added 8 years ago

Sal determines the domain of a function that models the height of a plant over time. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/determining-the-domain-of-a-function/e/interpreting
04:55 Popular
Fall As You Know It Is Disappearing

744 views / 0 likes - added 8 years ago

Climate change is slowly taking away our seasons. The first to go? Fall. Why Do People Love Pumpkin Spice Lattes So Much? ►►►► http://dne.ws/1QAKByP DNews Live Tickets Here ►►►► http://dne.ws/1Fa2OCh Read More: Fall of fall: The mellow season of autumn is
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Picture Graphs | Measurement And Data | Early Math | Khan Academy

1,526 views / 0 likes - added 8 years ago

Read and interpret a picture graph. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-picture-graphs/e/solving-problems-with-picture-graphs-1?utm_source=YT&utm
03:04 Popular
How To Create A Function From An Equation (example) | Functions | Algebra I | Khan Academy

913 views / 0 likes - added 8 years ago

Sal find the formula of a function that, given an input value "b," outputs a value "a" that satisfies the equation 4a+7b=-52. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/functions-
02:35 Popular
Interpreting Linear Formulas Example 2 | Algebra I | Khan Academy

1,433 views / 0 likes - added 8 years ago

Linear equation for file transfer Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/interpreting_linear_functions/e/interpreting-features-of-linear-function
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Evolution Of Ariana Grande - Pentatonix

598 views / 2 likes - added 5 years ago

TICKETS TO THE FIRST LEG OF ‘PENTATONIX: THE WORLD TOUR' ON SALE NOW http://www.ptxofficial.com/tour 5/11/2019 - Oracle Arena - Oakland, CA 5/14/2019 - Save Mart Center - Fresno, CA 5/16/2019 - The Forum - Inglewood, CA 5/19/2019 - Pepsi Center - Denver,
06:55 Popular
What Are Variables, Expressions, And Equations? | Introduction To Algebra | Algebra I | Khan Academy

1,710 views / 0 likes - added 8 years ago

Learn what variables, expressions, and equations really are. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/introduction-to-algebra/feel-for-equations-and-inequalit/e/dependent-and-independent-variable
01:03 Popular
Subtraction Word Problems Within 10 | Basic Addition And Subtraction | Early Math | Khan Academy

762 views / 0 likes - added 8 years ago

Learn how to solve word problems by subtracting small numbers (numbers 10 or less). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-sub-word-problem-wit
03:12 Popular
Graphing Linear Functions Example 2 | Algebra I | Khan Academy

1,942 views / 0 likes - added 8 years ago

Graphing equation for filling pool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/graphing-linear-functions-word-problems?utm
04:08 Popular
Measuring A Golden Statue | Measurement And Data | Early Math | Khan Academy

754 views / 0 likes - added 8 years ago

Measure an object with same-size length units that span it with no gaps or overlaps. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-picture-graphs/e/solving
03:51
How to Build a Teleporter with Aliens

485 views / 0 likes - added 6 years ago

The first 200 people to use http://skl.sh/minutephysics30 get 30% off a premium Skillshare subscription. Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ This video
06:35 Popular
Constructing Linear Functions Example 1 | Algebra I | Khan Academy

1,782 views / 0 likes - added 8 years ago

Linear model for ice sheet thickness Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/constructing-linear-functions-word-proble
01:42 Popular
Addition Word Problems Within 10 | Basic Addition And Subtraction | Early Math | Khan Academy

860 views / 1 likes - added 8 years ago

Learn how to solve word problems by adding small numbers (numbers 10 or less). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-sub-word-problem-within-1
05:09 Popular
Converting From Slope-intercept To Standard Form | Algebra I | Khan Academy

1,325 views / 0 likes - added 8 years ago

Converting from slope-intercept to standard form Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/standard-form/e/converting_between_slope_intercept_and_st
02:15 Popular
Addition And Subtraction Within 10 | Basic Addition And Subtraction | Early Math | Khan Academy

1,931 views / 0 likes - added 8 years ago

See how to solve a bunch of addition and subtraction problems with small numbers. All numbers in this video are 10 or less. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basic
03:40 Popular
DISNEY PIXAR CARS 3 Smart Steer Lightning McQueen Unboxing and Fun Test Drive with Evren Adventures

901 views / 0 likes - added 6 years ago

DISNEY PIXAR CARS 3 Smart Steer Lightning McQueen Unboxing and Fun Test Drive with Evren Adventures. Thanks for joining Evren to unbox this New Disney Pixar Cars 3 Smart Steer Lightning McQueen and test drive. Evren had lots of fun driving awesome Cars 3
01:06 Popular
TIL: Mount St. Helens Has a Baby Volcano Inside It | Today I Learned

923 views / 2 likes - added 6 years ago

On May 18, 1980, Mount St. Helens in Washington State erupted in the most explosive volcanic event in U.S. history. Fifty-seven people and countless animals died, a forest was leveled, and ash blanketed the region as far away as Minnesota. ➡ Subscribe: ht
03:31
Watch These Frustrated Squirrels Go Nuts! | Deep Look

597 views / 2 likes - added 7 years ago

Humans aren’t the only creatures that get frustrated. Squirrels do too. One researcher wants to know, could there be an evolutionary benefit to losing your cool? SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt DEEP LOOK is a ultra-HD (4K) short video series
13:17 Popular
Probability that at least 2 people in a room of 30 share the same birthday | Probability and Statist

982 views / 0 likes - added 6 years ago

The probability that at least 2 people in a room of 30 share the same birthday. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic/probability_combinatorics/e/probab
03:38 Popular
What Would Happen If All The Bugs Died?

738 views / 1 likes - added 6 years ago

Insects might seem annoying, but what happens if they all died off? Watch More: When Did Multicellular Life Begin? ►►►► https://www.youtube.com/watch?v=I2ZHMeF9dgA Get your exclusive Life Noggin merch: http://www.keeponthinking.co Support Life Noggin on P
02:27 Popular
Checking Ordered Pair Solutions To Equations Example 2 | Algebra I | Khan Academy

1,056 views / 0 likes - added 8 years ago

Second example of ordered pair solutions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/e/plugging_in_values?utm_so
03:24 Popular
How To Interpret An Expression With Function Notation | Functions | Algebra I | Khan Academy

1,425 views / 0 likes - added 8 years ago

Sal interprets the expression M(30)-M(0)=100 where M models an account balance over time. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/interpreting-function-notation/e/function-nota
02:50
Artificial Atoms Could Harness the Secret Power of Metamaterials

461 views / 0 likes - added 6 years ago

The superlattices used in metamaterials can be built using crystals called “artificial atoms.” What exactly are these tiny building blocks? These Nanostructures Are Hacking Nature - https://youtu.be/6-JjCvlPSF4 For a 30-day, unrestricted trial, go to http
02:35 Popular
Checking Ordered Pair Solutions To Equations Example 1 | Algebra I | Khan Academy

1,270 views / 0 likes - added 8 years ago

Checking ordered pair solutions to equations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/e/plugging_in_values?ut
04:22 Popular
What Did Sharks Look Like 450 Million Years Ago?

1,724 views / 12 likes - added 8 years ago

Sharks have survived through 5 mass extinctions! Find out how they've evolved throughout millions of years. How Can We Stop Sharks From Going Extinct? - http://bit.ly/25BYSU6 Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: Spiral
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01:49 Popular
How To Find Two Function Inputs With The Same Output Given Graph (example) | Khan Academy

1,853 views / 0 likes - added 8 years ago

Sal finds the input value other than -5 for which f(x)=f(-5), given the graph of f. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inp
03:39
[OFFICIAL VIDEO] Come Along - Pentatonix

612 views / 1 likes - added 5 years ago

GET ‘COME ALONG' NOW! http://smarturl.it/C0meAl0ngPTX?iQid=yt iTunes - http://smarturl.it/C0meAl0ngPTX/itunes?iQid=yt Apple Music - http://smarturl.it/C0meAl0ngPTX/applemusic?iQid=yt Spotify - http://smarturl.it/C0meAl0ngPTX/spotify?iQid=yt Amazon - http:
07:11 Popular
Graphing Solutions To Two-variable Linear Equations Example 2 | Algebra I | Khan Academy

2,051 views / 0 likes - added 8 years ago

Graphing solutions to 2 variable linear equations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/e/graphing-solutio
02:36 Popular
How To Interpret An Expression With Function Notation | Functions | Algebra I | Khan Academy

1,968 views / 0 likes - added 8 years ago

Sal interprets the expression P(5) minor P(9) where P models the number of people at the beach over time. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/interpreting-function-notation
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The Math (and money) of Soccer Stickers - Numberphile

516 views / 0 likes - added 6 years ago

Check out Brilliant (and get 20% off) by clicking https://brilliant.org/numberphile Featuring Federico Ardila --- More links & stuff in full description below ↓↓↓ Extra footage (the 'beautiful math' bit): https://youtu.be/iMSitUaoS3I Extra footage (some f
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How Bilingual Brains Perceive Time Differently

525 views / 1 likes - added 7 years ago

A new study has found that what language you speak might alter your perception of time. What Happens If We Give A.I. The Ability To Remember Everything? - https://youtu.be/3Nq-9_SwC68 Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Special
04:23
Aliens: Are We Looking In The Wrong Place?

603 views / 0 likes - added 8 years ago

Big Alien Theory explanation website - http://www.thebigalientheory.com/ Thanks to everyone who supports MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon supporters here: http://www.minutephysics.com/supporters.html Music by
03:22
Here’s How We Could Store Data on a Single Atom

518 views / 0 likes - added 5 years ago

Data storage is getting smaller and smaller, but what’s the limit? We Could Back Up the Entire Internet on a Gram of DNA - https://youtu.be/wjYLKhaeKL0 Read More: Scientists Have Found a New Way of Storing Information in a Single Atom https://www.sciencea
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Graphing Linear Functions Example 1 | Algebra I | Khan Academy

1,877 views / 0 likes - added 8 years ago

Learn how graph a linear function. This video gives an example of graphing fuel consumption as a function of distance. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-
02:50
We Could Live in Caves on the Moon, Here’s Everything You Need to Know

601 views / 0 likes - added 6 years ago

The pits on the moon might lead to caves big enough to fit cities, but how were they formed? Could We Create A Livable Atmosphere On The Moon? - https://youtu.be/ksvlHp--TgA Get 20% off http://www.domain.com domain names and web hosting when you use coupo
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DISNEY CARS 3 Mini Racers Blind Bags List Codes Surprise Eggs Hunt Challenge Guess Disney Cars 3

11.7k views / 3 likes - added 6 years ago

DISNEY CARS 3 Mini Racers Die cast Blind Bags List Codes Easter Surprise Eggs Hunt Challenge Lightning McQueen Guess the Disney Cars 3. Thanks for joining Evren and Evren's mummy to play Easter Eggs hunt challenges filled with lots of toys cars Disney Car
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How Radiation Changes Your DNA

1,006 views / 0 likes - added 8 years ago

Radiation is all around us and a part of everyday life. But what exactly is it and what does it do to our bodies? Watch the premiere of Life After: Chernobyl, Tuesday, April 26 at 10/9c on Animal Planet! Sign Up For The TestTube Newsletter Here ►►►► http:
01:32 Popular
TIL: Life Could Exist on Mars Thanks to Methane | Today I Learned

744 views / 0 likes - added 7 years ago

Discovering life on Mars is now looking more promising. According to geobiologist Jeff Marlow, anywhere on Earth we see liquid water and enough energy, we see life. The best way to find it on Mars might be to consider what early life on Earth looked like.
04:32
The Zeroth Power | Arithmetic Operations | 6th Grade | Khan Academy

615 views / 0 likes - added 8 years ago

Learn why a number raised to the zero power equals 1. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-arithmetic-operations/cc-6th-exponents/e/positive_and_zero_exponents?utm_source=Y
10:16
Why Moving People is Complicated: Crash Course Engineering #41

302 views / 0 likes - added 4 years ago

Transportation is a big part of our world and engineers play a big role in making it happen. Today well explore how transportation systems are designed and some things transportation engineers have to take into consideration, like signaling, user behavior
04:02
How Do Spacesuits Keep Astronauts Safe From The Vacuum Of Space?

683 views / 0 likes - added 8 years ago

There were many iterations of the spacesuit before astronauts started wearing what they do today, but how do they work? How Do Astronauts Poop in Space? ►►►► http://bit.ly/1SBdlNe Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG Read Mo
02:57 Popular
Banana Proportionality | Rated And Proportional Relationships | 7th Grade | Khan Academy

1,647 views / 0 likes - added 8 years ago

A proportionality problem about eating bananas Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/e/analyzing-and-identifying-proportional-rela
03:27 Popular
How To Use The Distributive Property To Factor Out The Greatest Common Factor | Khan Academy

1,177 views / 0 likes - added 8 years ago

Learn how to apply the distributive property to factor numerical expressions (no variables). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-distribut
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Why cities are full of uncomfortable benches

446 views / 0 likes - added 6 years ago

That bench won't be yours forever. Subscribe to our channel! http://goo.gl/0bsAjO When designing urban spaces, city planners have many competing interests to balance. After all, cities are some of the most diverse places on the planet. They need to be bui
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This thing is -270C and is EVERYWHERE

270 views / 0 likes - added 4 years ago

Download the PBS Video App: https://www.pbs.org/pbs-video-app/The universe is microwaving itself. A mystery signal discovered in the 1960s led to a Nobel prize. In this video, Dianna explores one of the most mysterious discoveries in physics - a constant
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How To Write Basic Expressions With Variables | 6th Grade | Khan Academy

848 views / 0 likes - added 8 years ago

Learn how to write basic algebraic expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-writing-expressions/e/writing-expressions-with-variabl
03:27 Popular
How To Evaluate Expressions In Two Variables With Decimals And Fractions | 6th Grade | Khan Academy

1,014 views / 0 likes - added 8 years ago

Learn how to evaluate expressions that have two different variables in them by using a technique called substitution (or "plugging in"). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6t
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How This Sea Shell Knows the Weather in Greenland

736 views / 0 likes - added 7 years ago

Foraminifera – tiny, single-celled marine life forms – build gorgeous houses that record how much ice there is on the planet. This video was supported by the Heising-Simons Foundation. To learn more, visit https://www.heisingsimons.org/ Special thanks to
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01:46 Popular
Movie Ticket Proportionality | 7th Grade | Khan Academy

1,008 views / 0 likes - added 8 years ago

When going to the movies, is the price you pay proportional to the number of tickets you buy? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-re
02:39 Popular
Proportionality Between Side Length And Perimeter | 7th Grade | Khan Academy

843 views / 0 likes - added 8 years ago

Is the perimeter of a square proportional to the side length of the square? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/e/analyzing-and-
12:43
Is Mycelium Fungus the Plastic of the Future?

219 views / 0 likes - added 2 years ago

Is Fungus the Plastic of the Future? Use the code "Undecided" to get CuriosityStream for less than $15 a year! https://curiositystream.com/Undecided. Plastic changed the course of manufacturing forever, but came at a cost. Mycelium technology might be the
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How Close Are We to Saving the Bees?

463 views / 1 likes - added 4 years ago

A world without bees would sting, to say the least. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more How Close Are We | http://bit.ly/HCAWplaylist Follow Olivia on Instagram: @OliviaPavcoGCorrection: Our Interview with Dr. Villalobos & scenes
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How To Use The Distributive Property With Variables | 6th Grade | Khan Academy

1,298 views / 0 likes - added 8 years ago

Learn how to apply the distributive property to algebraic expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-distributive-property/e/distrib
01:58 Popular
How To Find Equivalent Expressions By Combining Like Terms And Using The Distributive Property

1,246 views / 0 likes - added 8 years ago

"Equivalent algebraic expressions exercise Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-equivalent-expressions/e/equivalent-forms-of-expressions-1?
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How Do We Know The Universe Is ACCELERATING?

686 views / 0 likes - added 7 years ago

The universe is expanding – this we know from looking at red shifts of distant galaxies – but the acceleration of the universe's expansion is harder to measure. It requires measuring the change of recession velocity over time, and it's done by comparing T
16:19
The Cross Ratio - Numberphile

566 views / 0 likes - added 5 years ago

One of the most famous free kicks ever taken - but how far from the goal was Brazil's Roberto Carlos? More links & stuff in full description below ↓↓↓ Discussed by Federico Ardila from San Francisco State University. More Federico videos: http://bit.ly/Fe
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What if every satellite suddenly disappeared? - Moriba Jah

237 views / 1 likes - added 3 years ago

Explore what would happen if all of humanitys satellites disappeared and the real-life scenarios that could lead to such a catastrophe. --What would happen if one day all of humanitys artificial satellites suddenly disappeared? Within hours, most of the p
05:39
A brief history of divorce - Rod Phillips

254 views / 0 likes - added 3 years ago

Dig into the complicated history of divorce from the earliest known divorce laws in ancient Mesopotamia to modern day. --Formally or informally, human societies across place and time have made rules to bind and dissolve couples. The stakes of who can obta
05:38
Where Do Caves Come From? | Let's Explore Caves! | SciShow Kids

142 views / 0 likes - added 1 year ago

Teachers and parents: scroll down to check out the Next Generation Science Standards (NGSS) for this episode!Squeaks is back from visiting Sam the Bats cave and is excited to learn all about how different caves form and why they look the ways they do! Hos
03:46 Popular
Testing Whether Area Is Proportional To Side Length | 7th Grade | Khan Academy

1,181 views / 0 likes - added 8 years ago

Is the volume of a square proportional to the side length of the square? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-proportional-rel/e/analyzing-and-ide
02:54 Popular
How To Describe Real-world Situations With Inequalities | 6th Grade | Khan Academy

1,155 views / 0 likes - added 8 years ago

Learn how to write inequalities to model real-world situation. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-inequalities/e/inequalities-in-one-var
05:20
This tool will help improve your critical thinking - Erick Wilberding

229 views / 0 likes - added 3 years ago

Explore the technique known as the Socratic Method, which uses questions to examine a persons values, principles, and beliefs. --Socrates, one of the founding fathers of Western philosophical thought, was on trial. Many believed he was an enemy of the sta
04:37 Popular
Is Your Dog A Pessimist?

824 views / 0 likes - added 8 years ago

Dogs seem to have a generally happy outlook on life, but how can you tell if your dog is feeling gloomy? Can dogs be pessimistic? Watch more Vanessa Hill: Do Dogs Dream? ►►►► https://youtu.be/lG1DloJni70 Dogs Understand Human Smiles, Scowls ►►►► http://dn
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How To Solve One-step Equations With Fractions And Decimals | 6th Grade | Khan Academy

1,860 views / 0 likes - added 8 years ago

Learn how to solve one-step addition and subtraction equations that have fractions and decimals in them. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-

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