Search Results: "British state carriages"
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05:10
Reflexive pronouns  The parts of speech  Grammar  Khan Academy
266 views / 0 likes  addedWe use reflexive pronouns (like "herself" and "ourselves") when the subject and the object of a sentence are the same thing. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/gra

02:11
Perfect progressive aspect  The parts of speech  Grammar  Khan Academy
228 views / 0 likes  addedWe use the perfect progressive aspect to talk about an action that was once ongoing, but has since completed, like "I had been waiting for twenty minutes." Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/pa

02:00
What is a pronoun?  The parts of speech  Grammar  Khan Academy
231 views / 0 likes  addedPronouns are words that can replace nouns, like the way "it" replaces "elephant" in "I looked at the elephant. It was grey." Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/thepronoun/e/theq

03:14
The irregular verb gets taken for a ride  Grammar  Khan Academy
263 views / 0 likes  addedThis group of irregular verbs have vowel sounds that change in a predictable way, when they go from the present to the past tense. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammarverbs

05:38
What Is Antimatter And Why Are We Searching For It?
422 views / 1 likes  addedScientists have been looking for antimatter since the early 1920’s. Is antimatter real? Did Scientists Create A New State Of Matter? ►►►► http://dne.ws/21MDMS6 Sign Up For The TestTube Newsletter Here ►►►► http://dne.ws/1McUJdm Read More: Physicists Probe
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05:34
Subject and object pronouns  The parts of speech  Grammar  Khan Academy
224 views / 0 likes  addedBefore we get any further with pronouns, let's cover what the difference between a subject and an object pronoun is, because the distinction between those two concepts will start coming up a good deal. Practice this yourself on Khan Academy right now: htt

02:48
Adding In Binary  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
431 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/binarymultiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/

04:53
Modal verbs  The parts of speech  Grammar  Khan Academy
258 views / 0 likes  addedThere's a class of helper verbs known as modals that we use to express a bunch of conditions: we can use them to give advice, make guesses at how necessary or likely something is, make requests of people, and so on. They're super useful. Practice this you

04:39
Grammatical person and pronouns  The parts of speech  Grammar  Khan Academy
242 views / 0 likes  addedThere's this idea in grammar called grammatical person that helps describe who's being talked about in a sentence. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/parts

10:00
Introduction To Number Systems And Binary  PreAlgebra  Khan Academy
286 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/hexadecimalnumbersystem?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.

07:34
Hexadecimal Number System  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
384 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/decimaltobinary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math

02:45
Progressive Aspect  The parts of speech  Grammar  Khan Academy
259 views / 0 likes  addedIf verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o

01:32
Simple Aspect  The parts of speech  Grammar  Khan Academy
255 views / 0 likes  addedIf verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o

03:11
The vowelshift irregular verb  The parts of speech  Grammar  Khan Academy
247 views / 0 likes  addedThis group of irregular verbs have vowel sounds that change in a predictable way, when they go from the present to the past tense. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammarverbs

04:35
Commas and introductory elements  Punctuation  Grammar  Khan Academy
231 views / 0 likes  addedIn English, you use commas to separate introductory elements from the rest of a sentence. Find out how with David and Paige! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/e/commasan

09:16
Adding/subtracting Negative Numbers  PreAlgebra  Khan Academy
418 views / 0 likes  addedAdding and subtracting negative numbers Watch the next lesson: https://www.khanacademy.org/math/prealgebra/negativesabsolutevalueprealg/multdivnegativesprealg/v/multiplyingpositiveandnegativenumbers?utm_source=YT&utm_medium=Desc&utm_campaign=

09:36
Negative Numbers Introduction  Negative Numbers And Absolute Value  PreAlgebra  Khan Academy
353 views / 0 likes  addedMysterious negative numbers! What ARE they? They are numbers less than zero. If you understand the nature of below zero temperatures, you can understand negative numbers. We'll help. Practice this lesson yourself on KhanAcademy.org right now: https://www.

03:10
The NFL Is Using The VICIS ZERO1 Football Helmet That Morphs On Impact To Reduce Head Injuries
328 views / 1 likes  addedThis is not your typical football helmet. VICIS ZERO1 looks like a standard helmet on the outside. But when it hits something, it reacts much differently. Its innovative design is protecting football players' heads. Here's how it works. When hit, hardsh

05:18
Pronoun number  The parts of speech  Grammar  Khan Academy
319 views / 0 likes  addedThe difference between something being singular or plural is what we call 'grammatical number' in English. Here's how that idea applies to pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofsp

03:43
Converting From Decimal To Hexadecimal Representation  PreAlgebra  Khan Academy
297 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/binaryaddition?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/p

03:52
Converting From Decimal To Binary  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
396 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/alternatenumberbases/v/largenumberdecimaltobinary?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanaca

09:50
Adding And Subtracting Fractions  Fractions  PreAlgebra  Khan Academy
523 views / 1 likes  addedHow to add and subtract fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/fractionsunlikedenomprealg/e/adding_fractions?utm_source=YT&utm_medium=Desc&utm_campaign=PreA

02:20
Grace Vanderwaal  Be True to Your School (From the Disney+ Original Film "STARGIRL")
62 views / 0 likes  addedStream Stargirl, an Original Movie, on Disney+. Disney+ is the ultimate streaming destination for entertainment from Disney, Pixar, Marvel, Star Wars, and National Geographic. Access it all at https://disneymusic.co/JoinDisneyPlus?IQid=dmvevo."Be True to

05:51
Equivalent Fractions  Fractions  PreAlgebra  Khan Academy
408 views / 0 likes  addedIntroduces the concept of equivalent fractions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/equivalentfractionsprealg/e/equivalent_fractions?utm_source=YT&utm_medium=Desc&utm

02:31
Perfect Aspect  The parts of speech  Grammar  Khan Academy
236 views / 0 likes  addedIf verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o

18:00
Fun Summer Science!
225 views / 0 likes  addedThe sun is out and Jessi and Squeaks are ready to perform all kinds of fun outdoor science experiments! Let's take a look at some of the fun activities they've done before, like making a kite, building a solar tower, blowing bubbles, and of course, making

04:30
How Much Tea Would it Take to Turn the Boston Harbor into Tea?
440 views / 0 likes  addedWe wanted to know if enough tea was dumped in Boston harbor during the Boston tea party to turn the entire thing to tea. So we did some math. Subscribe! http://bit.ly/ACSReactions Facebook! http://facebook.com/ACSReactions Twitter! http://twitter.com/ACSR

13:21
Basic Multiplication  Multiplication And Division  Arithmetic  Khan Academy
526 views / 1 likes  addedIntroduction to multiplication Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/multiplicationdivision/multiplication_fun/e/multiplication_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic Wa

12:50
Top 10 Greatest Magic Tricks REVEALED & SECRETS EXPOSED
322 views / 0 likes  addedThe secrets of some of the worlds greatest magic tricks have finally been revealed. Here are the secrets of tricks performed by david copperfield, dynamo, david blaine and even penn and teller! Subscribe for more! ► https://goo.gl/pgcoq1 ◄ Stay updated ►

01:50
Introduction to verb aspect  The parts of speech  Grammar  Khan Academy
267 views / 0 likes  addedIf verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o

04:43
Subject, direct object, and indirect object  Syntax  Khan Academy
216 views / 0 likes  addedA subject is the noun phrase that drives the action of a sentence; in the sentence “Jake ate cereal,” Jake is the subject. The direct object is the thing that the subject acts upon, so in that last sentence, “cereal” is the direct object; it’s the thing J

04:49
The Black Hole Tipping Point
224 views / 0 likes  addedThanks to https://brilliant.org/minutephysics/ for sponsoring this video! Check out their black hole course at https://brilliant.org/minutephysicsblackhole Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters:

07:33
Ways to get a buffer solution  Chemistry  Khan Academy
230 views / 0 likes  addedDescribes the two main situations where you get a buffer: making a buffer for a specific pH by combining a weak acid and a salt containing the conjugate base, and using a neutralization reaction by combining a weak acid and a strong base. Watch the next l

13:57
Where US Politics Came From: Crash Course US History #9
375 views / 0 likes  addedIn which John Green teaches you where American politicians come from. In the beginning, soon after the US constitution was adopted, politics were pretty nonexistent. George Washington was elected president with no opposition, everything was new and excit
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03:53
Plotting Basic Fractions On The Number Line  Fractions  PreAlgebra  Khan Academy
439 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/understandingfractionsprealg/e/fractions_on_the_number_line_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex

01:46
Introduction to verb tense  The parts of speech  Grammar  Khan Academy
276 views / 0 likes  addedAn understanding of verb tense will make you into a TIME WIZARD, with the ability to control the past, the present, and the future – with your words, anyway. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/

14:48
PostWorld War I Recovery: Crash Course European History #36
33 views / 0 likes  addedIn which John Green looks at Europe's attempts to recover from the devastation of World War I and forge a lasting peace. The peace did not last. Today we're talking about the economic cultural recovery of the 1920s, and the economic depression of the 1930

01:11
Subtracting Decimals: Example 1  Decimals  PreAlgebra  Khan Academy
357 views / 0 likes  addedSubtracting decimals...up to the hundredths placement. Line up those decimals before you start. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimalsprealg/addingdecimalsprealg/e/subtracting

03:09
Simplifying Square Roots  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
469 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/radicalradicals/e/simplifying_radicals?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.kh

04:33
Multiplying Negative And Positive Fractions  Fractions  PreAlgebra  Khan Academy
394 views / 0 likes  addedSee examples of multiplying and dividing fractions with negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/multiplyingfractionsprealg/e/multiplying_fractions?utm_

02:39
Comparing Decimals: Ordering From Least To Greatest  Decimals  PreAlgebra  Khan Academy
397 views / 0 likes  addedThis is a fun example where we reorder decimals from smallest to largest. You're looking for the place value that is the most significant, and then working backwards. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/

03:50
Introduction To Multiplying Decimals  Decimals  PreAlgebra  Khan Academy
413 views / 0 likes  addedMultiplying decimals can be confusing because there's always the question as to where the decimals goes in the answer. We're about to show you so you'll never have to question it again! Practice this lesson yourself on KhanAcademy.org right now: https://w

06:29
Multiplying Decimals: Place Value And Reordering  Decimals  PreAlgebra  Khan Academy
429 views / 0 likes  addedWe want you to develop an intuition about how to work with decimals. Understanding how you can rewrite decimals by considering the place value will help you multiply! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/

03:29
Introduction to irregular verbs  The parts of speech  Grammar  Khan Academy
267 views / 0 likes  addedWords like "walk" and "look" are regular verbs – they behave in a predictable way. But there's a whole class of words in English, called irregular verbs, that are harder to predict. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Acad

05:53
NeverBeforeSeen Footage Uncovers Antarctica’s First Scientific Missions
217 views / 0 likes  addedDuring the Cold War, Antarctica was primed for conquest. Here’s how it became an international science laboratory. This NASA Mission Uses Cold War Planes to Map the World's Largest Island https://www.youtube.com/watch?v=oiQq9kWhGxI Subscribe! https://www.

01:53
The funky ed irregular verb  The parts of speech  Grammar  Khan Academy
267 views / 0 likes  addedThese are the most regular of the irregular verbs; while they don't behave exactly like regular verbs, like present tense "walk" become past tense "walked", they do maintain the "ed" sound. It's just spelled differently. Practice this yourself on Khan Ac

12:49
Scientific Notation Examples  PreAlgebra  Khan Academy
325 views / 0 likes  addedMore scientific notation examples Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/scientificnotation/e/scientific_notation?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra W

05:42
Understanding Division Of Fractions  Fractions  PreAlgebra  Khan Academy
397 views / 0 likes  addedUsing a number line, we'll explain the rule of "invert and multiply" when dividing two fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/divfractionsfractionsprealg/e/

09:23
Converting Fractions To Decimals  Decimals  PreAlgebra  Khan Academy
440 views / 1 likes  addedHow to express a fraction as a decimal Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimalsprealg/decimaltofractionprealg/e/converting_fractions_to_decimals?utm_source=YT&utm_medium=Desc&u

04:20
Dividing A Whole Number By A Decimal  Decimals  PreAlgebra  Khan Academy
392 views / 1 likes  addedWhen dividing a whole number by a decimal, you're going to need to change that decimal into a whole number. How? We'll show you. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimalsprealg/divi

02:07
Percentage Of A Whole Number  Decimals  PreAlgebra  Khan Academy
266 views / 0 likes  addedWe hope you're beginning to see that there's more than one way to skin a cat. In other words, there are several different ways to solve problems involving percentages, decimals, and fractions. Watch as find the percentage of a whole number. Watch the next

15:06
Hydrogen Can Be a Metal?! Plus, Other Weird States of Matter (Part 2 of 3)
182 views / 0 likes  addedSolids, liquids, and gases are only the beginning. What are the other states of matter? Hint: There are more than you think. Part 1 of 3  https://youtu.be/58CgtX6uCY Part 3 of 3  coming next Thursday! Read More: Matter: Definition & the Five States of

05:20
Order Of Operations: PEMDAS  Arithmetic Properties  PreAlgebra  Khan Academy
333 views / 0 likes  addedWork through another challenging order of operations example with only positive numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/orderofoperations/order_of_operations/e/order_of_operations

03:21
Introduction To Perimeter  Measurement  PreAlgebra  Khan Academy
275 views / 0 likes  addedFind perimeter by adding sidelengths of various figures. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/measurement/perimeter/e/perimeter_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Wa

02:38
Adding 5 + 3 + 6  Addition And Subtraction Within 20  Early Math  Khan Academy
364 views / 0 likes  addedLearn how to add 5 + 3 + 6. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub20/ccearlymathadd20/e/addingthreenumbers?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath W

00:56
Counting With Small Numbers  Counting  Early Math  Khan Academy
394 views / 0 likes  addedLearn how to count squirrels and horses. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathcountingtopic/ccearlymathcounting/e/countingout120objects?utm_source=YT&utm_medium=Desc&

05:34
Multiplying Positive And Negative Numbers  PreAlgebra  Khan Academy
345 views / 0 likes  addedLearn some rules of thumb for multiplying positive and negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/absolutevalue/mult_div_negatives/e/multiplying_and_dividing_negative_numbers?

09:29
Dividing Decimals With Hundredths Example 3  Decimals  PreAlgebra  Khan Academy
387 views / 0 likes  addedThe old saying is "practice makes perfect." Let's keep practicing dividing decimals and making our divisor a whole number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimalsprealg/dividingd

03:08
Multiplying Unit Fractions And Whole Numbers  Fractions  PreAlgebra  Khan Academy
428 views / 1 likes  addedDon't let multiplying whole numbers and fractions get you down. We got this. This explanation will help you become a pro. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/multiplyin

09:15
Mixed Numbers And Improper Fractions  Fractions  PreAlgebra  Khan Academy
464 views / 1 likes  addedConverting mixed numbers to improper fractions and improper fractions to mixed numbers Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/fractionsprealg/mixednumbersprealg/e/converting_mixed_numb

03:36
Approximating Irrational Number Exercise Example  PreAlgebra  Khan Academy
313 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/orderofoperations/rationalirrationalnumbers/e/approximatingirrationalnumbers?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex

03:19
Adding 8 + 7  Addition And Subtraction Within 20  Early Math  Khan Academy
367 views / 0 likes  addedLearn 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/earlymath/ccearlymathaddsub20/ccearlymathadd20/e/addition_2?utm_source=YT&utm_medium=Desc&utm_campaign=

05:08
Could a Particle Accelerator Destroy Earth?
156 views / 0 likes  addedYou may have heard theories that particle accelerators could destroy earth by creating strange matter, an accidental black hole, or by tearing the fabric of spacetime itself. But is there any real science behind these claims? There Are 30,000 Particle Acc

04:52
Possessive pronouns  The parts of speech  Grammar  Khan Academy
330 views / 0 likes  addedWe can use pronouns to show possession relationships, describing what things belong to which people, like "her shoe" or "the book is mine." Possessive pronouns come in two flavors: adjective and noun! David, KA's resident grammarian, covers the difference

14:13
Introduction To Ratios  Ratios, Proportions, Units, And Rates  PreAlgebra  Khan Academy
453 views / 0 likes  addedWhat a ratio is. Simple ratio problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/ratesandratios/ratios_and_proportions/e/ratio_word_problems?utm_source=YT&utm_medium=Desc&utm_campaign=PreAl

04:51
Cube Root Of A Nonperfect Cube  PreAlgebra  Khan Academy
397 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/cuberoottutorial/e/cube_roots?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.khanacadem

02:44
The DYING Barrier Reef
121 views / 0 likes  addedClimate Change is destroying the Great Barrier Reef. In the last 2 years the Great Barrier Reef has lost over half its coral. At the current rate at which sea temperatures are rising the Reef will go extinct in the next 20 to 30 years. I have witnessed th

04:58
Comparing Fractions Of Different Wholes  Fractions  3th Grade  Khan Academy
453 views / 0 likes  addedComparing fractions of different wholes Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccthirdgrademath/cc3rdfractionstopic/cc3rddifferentwholes/e/namingthewhole?utm_source=YT&utm_medium=Desc&utm_ca

03:33
Finding A Percentage  Decimals  PreAlgebra  Khan Academy
390 views / 0 likes  addedOnce again, fractions are our friends as we use them to find a percentage. You'll also see a couple of different ways to arrive at the answer. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/decimal

04:07
Adding And Subtracting Negative Numbers  PreAlgebra  Khan Academy
361 views / 0 likes  addedLearn 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

09:43
Exponent Rules Part 1  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
408 views / 0 likes  addedIntroduction to exponent rules Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/exponentproperties/e/exponent_rules?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the

02:35
Dividing Whole Numbers And Fractions: Studying  Fractions  PreAlgebra  Khan Academy
500 views / 0 likes  addedSolve 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/prealgebra/fractionsprealg/dividingfractionsprealg

03:03
Introduction To Exponents  PreAlgebra  Khan Academy
350 views / 0 likes  addedTaking an exponent is basically the act of repeated multiplication. You know how to multiply, right? If so, understanding exponents is completely within your grasp! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/ma

02:04
Ratio Word Problem: Boys To Girls  PreAlgebra  Khan Academy
309 views / 0 likes  addedIn this example, we are given a ratio and then asked to apply that ratio to solve a problem. No problem! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/ratesandratios/ratios_and_proportions/e/rat

05:41
Math Patterns Example 2  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
363 views / 0 likes  addedWe continue to strengthen our skill in identifying patterns. This time we'll use a table to track the pattern. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/mathpatterns?utm_source=YT&utm_medium=Desc&utm

20:48
Introduction To Scientific Notation  PreAlgebra  Khan Academy
421 views / 0 likes  addedIntroduction to scientific notation. An indepth discussion about why and how scientific notation is used. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/scientificnotation/e/sc

08:13
Prime Numbers  Factors And Multiples  PreAlgebra  Khan Academy
359 views / 0 likes  addedWhat does it mean to be a prime number? Let's progress though some whole numbers and ask ourselves if they meet the criteria. What is the criteria you ask? Watch. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math

04:25
Multiplying Challenging Decimals  Decimals  PreAlgebra  Khan Academy
306 views / 0 likes  addedSometimes multiplying really small decimals (with all those zeros!) can be a little intimidating. Watch as we show you a handy trick to simplify these problems and solve them. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanaca

02:28
Drawing Line Of Reflection  Transformations  Geometry  Khan Academy
408 views / 0 likes  addedDrawing line of reflection Watch the next lesson: https://www.khanacademy.org/math/geometry/transformations/hsgeoreflections/v/determiningthelineofreflection?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www

07:00
Abstractness  Introduction To Algebra  Algebra I  Khan Academy
297 views / 0 likes  addedThe general idea behind the word 'abstract' Watch the next lesson: https://www.khanacademy.org/math/algebra/introductiontoalgebra/overview_hist_alg/v/thebeautyofalgebra?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? h

00:59
Average Height Of A Building's Floor  Multiplication And Division  3th Grade  Khan Academy
353 views / 0 likes  addedLearn how to use the Khan Academy number line widget. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccthirdgrademath/cc3rdfractionstopic/cc3rdfractionsonthenumberline/e/fractions_on_the_number_lin

03:38
Math Patterns Example 1  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
354 views / 0 likes  addedPart of our exploration of math is learning to identify patterns among numbers. Can you see the pattern in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/mathpatterns?utm_source=YT&utm_mediu

04:24
Example Of Subtracting Fractions With Unlike Denominators  Fractions  PreAlgebra  Khan Academy
415 views / 0 likes  addedIf 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

02:36
Converting Decimals To Percents  Decimals  PreAlgebra  Khan Academy
322 views / 0 likes  addedNeed 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/prealgebra/decimalsprealg/percentintrop

04:00
Finding Factors And Multiples  Factors And Multiples  PreAlgebra  Khan Academy
456 views / 0 likes  addedTo find the factors of a number means to find all the whole numbers that the number in question is divisible by. Can you help us find the factors in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math

03:53
Adding 7 + 6  Addition And Subtraction Within 20  Early Math  Khan Academy
298 views / 0 likes  addedLearn how to add 7 + 6 using the number line. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub20/ccearlymathadd20/e/addition_2?utm_source=YT&utm_medium=Desc&utm_campaign=Ear

04:57
Irregular plural nouns  foreign plurals  The parts of speech  Grammar  Khan Academy
295 views / 0 likes  addedYou don't need to know how to speak Latin and Greek in order to understand English, but some words in English come from those languages. It's helpful to know how some Greek and Latin words change from singular to plural. Practice this yourself on Khan Aca

13:13
The History of Video
181 views / 0 likes  addedI always wanted to know why film looked better than video. Moving electronic images have as long a history but were invented for a different purpose. This video was sponsored by B&H Photo: https://www.bhphotovideo.com Huge thanks to: Richard Diehl, Video

09:45
Simplifying Radicals  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
417 views / 1 likes  addedUsing exponent rules to simplify radicals or square roots Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/radicalradicals/e/simplifying_radicals?utm_source=YT&utm_medium=Desc&utm

03:36
Addition Using Groups Of 10 Intro  Addition And Subtraction Within 100  Early Math  Khan Academy
341 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathmakinggroupsoften/e/making100?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: h

04:03
Subtracting 14  6  Addition And Subtraction Within 20  Early Math  Khan Academy
347 views / 0 likes  addedLearn 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/earlymath/ccearlymathaddsub20/ccearlymathsub20/e/subtraction_2?utm_source=YT&u

02:32
Dividing Whole Numbers And Fractions: Potpourri  Fractions  PreAlgebra  Khan Academy
420 views / 0 likes  addedSolve 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/prealgebra/fractionsprealg/dividingfractionsprealg

03:37
Starfish Rulers  Addition And Subtraction Within 100  Early Math  Khan Academy
353 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathmorefewer100/e/additionandsubtractionwordproblemswithin100level4?utm_source=YT&utm_medium=Desc&utm_c

04:49
What's the difference between hibernation and sleep?  Sheena Lee Faherty
337 views / 0 likes  addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/whatsthedifferencebetweenhibernationandsleepsheenafaherty The Arctic Ground Squirrel hibernates by burrowing under the permafrost and slipping
Featured 
04:17
Introduction To Area And Unit Squares  Measurement  PreAlgebra  Khan Academy
290 views / 0 likes  addedCover figures with square units to find their area. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/measurement/areabasics/e/measuringareawithunitsquares?utm_source=YT&utm_medium=Desc&utm_campa

07:14
Negative Exponents  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
408 views / 0 likes  addedHow does a negative exponent affect our answer? Before you assume that the answer must be negative, think again! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/exponentsradicals/negativeexponents

02:36
Counting By Tens Examples  Addition And Subtraction Within 100  Early Math  Khan Academy
391 views / 0 likes  addedLearn to count by tens. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathskipcounting/e/skipcountingby10s?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMa

04:23
Samurai Wasps Say 'Smell Ya Later, Stink Bugs'  Deep Look
210 views / 0 likes  addedSupport Deep Look on Patreon! https://www.patreon.com/deeplook Yep, brown marmorated stink bugs are stinky, but that’s not the worst thing about them. They're imported agricultural pests eating their way across North America. But a native enemy from Asia

03:23
Spots On A Die  Addition And Subtraction Within 100  Early Math  Khan Academy
400 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathmorefewer100/e/additionandsubtractionwordproblemswithin100level4?utm_source=YT&utm_medium=Desc&utm_c

00:52
Reading Bar Charts: Basic Example  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
315 views / 0 likes  addedLet's start with this bar chart that brings back the days of Harry Potter! Putting our toes in the water on this one... Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/

02:12
Fewer Word Problems  Addition And Subtraction Within 100  Early Math  Khan Academy
378 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathmorefewer100/e/additionandsubtractionwordproblemswithin100level3?utm_source=YT&utm_medium=Desc&utm_c

02:50
Adding By Getting To Group Of 10 First  Early Math  Khan Academy
377 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathmakinggroupsoften/e/making100?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: h

03:53
Missing Number For Addition And Subtraction Within 1000  3th Grade  Khan Academy
421 views / 0 likes  addedLearn how to solve missing number problems like ___ + 261 = 630. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccthirdgrademath/cc3rdaddsubtopic/cc3rdaddsubmissingvalue/e/findthemissingnumber

04:30
Do Humans Have the Ability To Sniff Out Bombs?
255 views / 0 likes  addedWe use dogs as our goto sniffers for bombs and rescue missions. But how does our sense of smell compare? What Does Space Smell Like?  https://youtu.be/Dn23GbsWJjE Sign Up For The Seeker Newsletter Here  http://bit.ly/1UO1PxI Get 15% off http://www.doma

03:59
Adding Ten Or One Hundred  Addition And Subtraction Within 100  Early Math  Khan Academy
391 views / 1 likes  addedLearn how to add 1, 10, or 100 to a number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddonestenshundreds/e/addwithin1000level1?utm_source=YT&utm

03:29
Everything You Need To Know About Kidney Stones
235 views / 0 likes  addedResearchers have found that riding roller coasters may help pass kidney stones! But what are kidney stones and what causes them? Is It Dangerous To Hold In Your Pee?  https://youtu.be/1PmZdIPXqCw Sign Up For The Seeker Newsletter Here  http://bit.ly/1UO

03:18
Robot Spy Seal Vs Great White Shark
74 views / 0 likes  added#Seal #SpyInTheWild #GreatWhiteSharkRobot Spy Seal spots a great white shark approach an oblivious young seal  but will Spy Seal and the seal escape?Clip taken from episode 3 'The Islands' of our brand new second series of Spy in the Wild, narrated by Da

02:53
More Word Problems  Addition And Subtraction Within 100  Early Math  Khan Academy
384 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathmorefewer100/e/additionandsubtractionwordproblemswithin100level3?utm_source=YT&utm_medium=Desc&utm_c

56:50
Great Museums: Elevated Thinking: The High Line in New York City
468 views / 1 likes  addedNarrated by actress Susan Sarandon, this hourlong documentary film showcases the High Line, a most unusual and unlikely public park. Since opening in 2009, it has become a top global tourist destination, with nearly 5 million visitors annually. Since 199

02:34
Adding Twodigit Numbers Without Regrouping  Early Math  Khan Academy
395 views / 0 likes  addedLearn to add 23 + 45 thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddsubtract100/e/addition_3?utm_source=YT&utm_medium=Desc&ut

04:06
Making 5  Basic Addition And Subtraction  Early Math  Khan Academy
417 views / 0 likes  addedLearn how to add numbers to make 5. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsubbasics/ccearlymathmaking59/e/makingfive?utm_source=YT&utm_medium=Desc&utm_campaign=Earl

02:58
Monkeys For A Party  Place Value (tens And Hundreds)  Early Math  Khan Academy
352 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathplacevaluetopic/ccearlymathteens/e/teennumbers1?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: https:

04:56
Equal Sign  Addition And Subtraction Within 20  Early Math  Khan Academy
404 views / 0 likes  addedLearn what the equals sign really means. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub20/ccearlymathequalssign/e/meaningofequalsign1?utm_source=YT&utm_medium=Desc&utm

01:34
Solving Ratio Problems With Graph  PreAlgebra  Khan Academy
377 views / 0 likes  addedIn this example we'll plot points on the x and y axis to reflect the given ratios. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/ratesandratios/ratios_and_proportions/e/solvingratioproblemswi

02:06
Relating Addition And Subtraction  Basic Addition And Subtraction  Early Math  Khan Academy
354 views / 0 likes  addedSee the relationship between 2+3=5, 52=3, and 53=2. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsubbasics/ccearlymathaddsubtract10/e/relateadditionandsubtraction?utm_

04:19
Snow On Friday  Addition And Subtraction Within 100  Early Math  Khan Academy
328 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddsub100wordproblems/e/additionandsubtractionwordproblemswithin100level2?utm_source=YT&utm_medium

02:37
Understanding Place Value When Subtracting Tens  Early Math  Khan Academy
373 views / 0 likes  addedLearn 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/earlymath/ccearlymathaddsub100/ccearlymathsubonestens/e/subtractwithin100level1?ut

04:25
Using Crayons  Addition And Subtraction Within 100  Early Math  Khan Academy
372 views / 1 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddsub100wordproblems/e/additionandsubtractionwordproblemswithin100level2?utm_source=YT&utm_medium

03:16
Understanding Place Value While Adding Tens  Early Math  Khan Academy
285 views / 0 likes  addedLearn how to add 23 + 30 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddonestens/e/addwithin100level1?utm_source=YT&u

03:31
Fence Posts For Horses  Addition And Subtraction Within 100  Early Math  Khan Academy
339 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddsub100wordproblems/e/additionandsubtractionwordproblemswithin100level1?utm_source=YT&utm_medium

05:32
Exercising Gorillas  Addition And Subtraction Within 20  Early Math  Khan Academy
374 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub20/ccearlymathwordproblemswithin20/e/additionandsubtractionwordproblemswithin20level2?utm_source=YT&utm_medium=Des

03:28
Inequality Word Problems  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
424 views / 0 likes  addedWe're writing inequalities by using information from the word problems. Woohoo! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/greaterthanlessthan/e/writingnumeric

01:54
Getting To 10 By Filling Boxes  Basic Addition And Subtraction  Early Math  Khan Academy
406 views / 0 likes  addedLearn 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/earlymath/ccearlymathaddsubbasics/ccearlymathmake

03:38
Sea Monsters And Superheroes  Addition And Subtraction Within 20  Early Math  Khan Academy
389 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub20/ccearlymathwordproblemswithin20/e/additionandsubtractionwordproblemswithin20level1?utm_source=YT&utm_medium=Des

03:39
Introduction To Subtraction  Basic Addition And Subtraction  Early Math  Khan Academy
373 views / 0 likes  addedLearn what it means to subtract. The examples used in this video are 43 and 52. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsubbasics/ccearlymathaddsubintro/e/subtractio

04:16
Least Common Multiple Exercise  Factors And Multiples  PreAlgebra  Khan Academy
370 views / 0 likes  addedWe're practicing finding the least common multiple in these example exercises. We'll teach you the prime factorization approach which is a pretty nifty way to find the lcm (least common multiple). Practice this lesson yourself on KhanAcademy.org right now

06:56
Exponents And Powers Of Zero Patterns  PreAlgebra  Khan Academy
385 views / 0 likes  addedNow that we understand how to interpret an exponent and how the patterns in zeros are related to the exponent, we can solve more complicated problems! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra

06:20
Greatest Common Factor Explained  Factors And Multiples  PreAlgebra  Khan Academy
297 views / 0 likes  addedHere'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/prealgebra/factorsmultiples/

02:49
Skip Counting By 100 Example  Addition And Subtraction Within 100  Early Math  Khan Academy
405 views / 0 likes  addedLearn to count by hundreds. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathskipcounting/e/skipcountingby100s?utm_source=YT&utm_medium=Desc&utm_campaign=Ea

02:49
Percent Word Problem Example 2  Decimals  PreAlgebra  Khan Academy
318 views / 0 likes  addedIt'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

02:55
Place Value Example With 25  Place Value (tens And Hundreds)  Early Math  Khan Academy
375 views / 0 likes  addedLearn to see 25 as 2 tens and 5 ones. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathplacevaluetopic/ccearlymathtens/e/groupsoftens?utm_source=YT&utm_medium=Desc&utm_campaign=Ea

02:10
Subtract Tens Exercise  Addition And Subtraction Within 100  Early Math  Khan Academy
363 views / 0 likes  addedLearn how to add and subtract tens. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathsubonestens/e/subtracttens?utm_source=YT&utm_medium=Desc&utm_campaign=Ea

11:58
The Biggest Science of the DECADE (20102019)
48 views / 0 likes  addedA 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

01:55
Drawing Image Of Translation  Transformations  Geometry  Khan Academy
428 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeotranslations/e/translations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://www.khanacademy.org

04:19
Place Value Example With 42  Place Value (tens And Hundreds)  Early Math  Khan Academy
422 views / 0 likes  addedLearn to see 42 as 4 tens and 2 ones. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathplacevaluetopic/ccearlymathtens/e/groupsoftens?utm_source=YT&utm_medium=Desc&utm_campaign=Ea

02:05
Skip Counting By 5 Example  Addition And Subtraction Within 100  Early Math  Khan Academy
383 views / 0 likes  addedLearn to count by fives. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathskipcounting/e/skipcountingby5s?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMa

05:05
Solving Ratio Problems With Tables Example 1  PreAlgebra  Khan Academy
281 views / 0 likes  addedWe're displaying ratios in a table format here, and then asking: given a ratio, solve for equivalent ratios. Here are a few examples to practice on. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/r

02:45
Understanding Place Value While Subtracting Ones  Early Math  Khan Academy
356 views / 0 likes  addedLearn 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/earlymath/ccearlymathaddsub100/ccearlymathsubonestens/e/subtractwithin100level1?utm

04:28
Adding And Subtracting On Number Line Word Problems  Early Math  Khan Academy
373 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddsub100wordproblems/e/addingandsubtractingonthenumberlinewordproblems?utm_source=YT&utm_medium=De

04:11 Popular
Subtracting Ten Or One Hundred  Addition And Subtraction Within 100  Early Math  Khan Academy
878 views / 0 likes  addedLearn how to subtract 1, 10, or 100 from a number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathsubonestenshundreds/e/subtractwithin1000level1?utm_s

03:23
Comparison Word Problems  Addition And Subtraction Within 20  Early Math  Khan Academy
365 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub20/ccearlymathwordproblemsmorefewer20/e/additionandsubtractionwordproblemswithin20level3?utm_source=YT&utm_medium

06:14
How To Plot Inequalities On A Number Line  PreAlgebra  Khan Academy
365 views / 0 likes  addedLearn how to graph an inequality on a number line to indicate which values make it true. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/greaterthanlessthan/e/writin

02:36
Understanding Place Value When Adding Ones  Early Math  Khan Academy
338 views / 0 likes  addedLearn how to add 37 + 2 by thinking about place value. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddonestens/e/addwithin100level1?utm_source=YT&ut

08:34
LCM And GCF Word Problems  Factors And Multiples  PreAlgebra  Khan Academy
377 views / 1 likes  addedHere we have a couple of word problemsone 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

02:17
Pieces Of Fruit  Basic Addition And Subtraction  Early Math  Khan Academy
484 views / 0 likes  addedLearn how to add fruit (by putting fruit together) and sutract fruit (by taking fruit away). Examples used are 5+3 and 53. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsubbasic

03:00
Teens As Sums With 10  Place Value (tens And Hundreds)  Early Math  Khan Academy
375 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathplacevaluetopic/ccearlymathteens/e/teennumbers1?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: https:

03:45
Visualizing Equivalent Fractions  Fractions  PreAlgebra  Khan Academy
426 views / 0 likes  addedTo 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/preal

05:02
Positive And Negative Slope  Algebra I  Khan Academy
344 views / 0 likes  addedPositive and negative slope Watch the next lesson: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/slope/v/similartrianglestoprovethattheslopeisconstantforaline?utm_source=YT&utm_medium=Desc&utm_campaign

03:37
Adding Hundreds, Tens, And Ones  Addition And Subtraction Within 100  Early Math  Khan Academy
521 views / 0 likes  addedLearn how to add threedigit numbers by adding ones, tens, and hundreds. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddonestenshundreds/e/addwithin10

15:33
Democracy, Authoritarian Capitalism, and China: Crash Course World History 230
427 views / 0 likes  addedIn 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 westernstyle d

02:00
Adding To 10  Basic Addition And Subtraction  Early Math  Khan Academy
414 views / 0 likes  addedLearn 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/earlymath/ccearlymathaddsubbasics/ccearlymathmake10/e/makingten2?utm_

03:11
Introduction To Addition  Basic Addition And Subtraction  Early Math  Khan Academy
342 views / 0 likes  addedLearn 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/earlymath/ccearlymathaddsubbasics/ccearlymathaddsubintro/e/addition_1?utm_

03:33
Losing Tennis Balls  Addition And Subtraction Within 100  Early Math  Khan Academy
363 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathaddsub100wordproblems/e/additionandsubtractionwordproblemswithin100level1?utm_source=YT&utm_medium

05:57
What Tardigrades Can Teach Us About Life in the Rainforest
164 views / 0 likes  addedDr. Meg Lowman climbs hundreds of feet off the ground to reach ecosystems at the very top of the rainforest. Her research sheds new light on these extremely diverse communities of plants and animals, from sloths to butterflies to tiny tardigrades. Experie

08:21
Twovariable Linear Equations And Their Graphs  Algebra I  Khan Academy
280 views / 0 likes  addedIntroduction to 2variable linear equations and their graphs Watch the next lesson: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/solutionstotwovarlinearequations/v/checkingorderedpairsolutionstoequatio

08:13
Points After Rotation  Transformations  Geometry  Khan Academy
380 views / 1 likes  addedPoints after rotation Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeorotations/e/rotations1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://w

04:31
Number Patterns: Interpreting Relationships  PreAlgebra  Khan Academy
310 views / 0 likes  addedExamining the points on a number line and interpreting the patterns to discover the relationships. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/prealgebra/applyingmathreasoningtopic/numberpatterns/e/vis

03:38
What Would Happen If All The Bugs Died?
281 views / 0 likes  addedInsects 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

07:51
Volume: How To Measure It  Measurement  PreAlgebra  Khan Academy
354 views / 0 likes  addedVolume 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

02:27
Inequality Word Problem: One Variable  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
317 views / 0 likes  addedThis 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/prealgebra/applyingmathreasoningto

3:22:44
Were Swimming With Turtles (Again!)
30 views / 0 likes  addedStrap on your flippersthe TurtleCam is back! Were taking another deep dive with green sea turtles off the coast of the Bahamian island of Eleuthera. The camera was placed on the turtles back by biologist Nathan Robinson and his team at the Cape Eleuthera

01:58
Counting In Order  Counting  Early Math  Khan Academy
379 views / 0 likes  addedLearn how to count without making mistakes. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathcountingtopic/ccearlymathcounting/e/countingobjects?utm_source=YT&utm_medium=Desc&utm_ca

12:33
Cryptography: Crash Course Computer Science #33
284 views / 0 likes  addedToday we’re going to talk about how to keep information secret, and this isn’t a new goal. From as early as Julius Caesar’s Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587, theres has long been a need to encrypt a

04:32
Cyborg Cockroaches Could Save Your Life  Cyborg Nation
339 views / 0 likes  addedMost consider them pesky critters, but Dr. Alper Bozkurt of North Carolina State University thinks that cockroaches have the potential to save human lives. By hacking their antennae and transforming them into remotecontrolled creatures, he believes we ca

03:06
Will Robot Spy Gorilla Be Welcomed By The Great Silverback?
46 views / 0 likes  added"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

02:36
Number Patterns: Seeing Relationships  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
352 views / 0 likes  addedLaying 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/prealgebra/applyin

01:54
Missing Numbers Between 0 And 120  Counting  Early Math  Khan Academy
410 views / 0 likes  addedLearn how to find missing numbers between 0 and 120. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathcountingtopic/ccearlymathnumbers120/e/countto100?utm_source=YT&utm_medium=Des

04:58
Number Grid  Counting  Early Math  Khan Academy
359 views / 0 likes  addedIn 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/earlymath/ccearlymath

10:32
Rotating About Arbitrary Point  Transformations  Geometry  Khan Academy
383 views / 0 likes  addedRotating about arbitrary point Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeorotations/e/rotations2?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson:

04:31
Counting American Coins  Measurement And Data  Early Math  Khan Academy
379 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathmoney/v/countingdollars?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: htt

05:59
Introduction To Place Value  Place Value (tens And Hundreds)  Early Math  Khan Academy
369 views / 0 likes  addedLearn 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/earlymath/ccearlymathplacevaluetopic/c

04:01
Comparing Values With Calculator  Numbers And Operations  8th Grade  Khan Academy
409 views / 0 likes  addedLearn 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/cceighthgrademath/cc8thnumbersoperations/cc8thapproximatingirrationalnumbers/e/approximatingirr

12:29
Combinatorics and Higher Dimensions  Numberphile
156 views / 0 likes  addedFeaturing Federico Ardila from San Francisco State University  filmed at MSRI. More links & stuff in full description below ↓↓↓ Federico previously on Numberphile: https://www.youtu.be/OfEv5ZdSrhY Federico's webpage: http://math.sfsu.edu/federico/ Antarc

02:37
Order By Length  Measurement And Data  Early Math  Khan Academy
399 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathlengthintro/e/orderbylength?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesso

02:46
Defining Rotation Example  Transformations  Geometry  Khan Academy
397 views / 0 likes  addedDefining rotation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeorotations/e/definingrotations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson

02:03
Comparing Numbers Of Objects  Counting  Early Math  Khan Academy
404 views / 1 likes  addedLearn what "more than" and "less than" mean. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathcountingtopic/ccearlymathcomparingnumbers/e/comparegroupsthrough10?utm_source=YT&utm

02:04
Compose Shapes  Geometry  Early Math  Khan Academy
373 views / 0 likes  addedLearn how to combine shapes to make other shapes. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathgeometrytopic/ccearlymathcomposingshapes/e/composeshapes?utm_source=YT&utm_medium

07:08
Early Train Word Problem  Linear Equations  Algebra I  Khan Academy
395 views / 0 likes  addedFun word problem that is almost a brain teaser. Watch the next lesson: https://www.khanacademy.org/math/algebra/solvinglinearequationsandinequalities/Moreequationpractice/v/patternsinsequences1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

07:19
Reflecting Segments Over Line  Transformations  Geometry  Khan Academy
349 views / 0 likes  addedReflecting segments over line Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeoreflections/e/reflections1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesso

03:40
Multistep Word Problem With Decimals And Subtraction  PreAlgebra  Khan Academy
379 views / 0 likes  addedFirst 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/prealgebra/applyingmathreasoningtopi

03:33
Why Poor Places Are More Diverse
415 views / 0 likes  addedThanks to The Kwongan Foundation at the University of Western Australia for supporting this video: http://www.plants.uwa.edu.au/alumni/kwongan MinuteEarth is now on Patreon! Please support us at: http://www.patreon.com/minuteearth And subscribe!  http://

02:41
Multiplying Multiples Of Powers Of 10  Numbers And Operations  8th Grade  Khan Academy
371 views / 0 likes  addedLearn how to multiply (9 * 10^9) (2 * 10^3). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cceighthgrademath/cc8thnumbersoperations/cc8thordersofmagnitude/e/ordersofmagnitude?utm_source=YT&utm_m

04:09
The $18 Million Problem Hiding Underground
96 views / 0 likes  addedThis is one challenge that's costing cities millions of dollars each year.Go to http://expressvpn.com/lifenoggin to take back your Internet privacy TODAY and find out how you can get 3 months free. Subscribe: https://bit.ly/SubLifeNoggin  Get your exclus

02:57
Reading Bar Graph Examples  Measurement And Data  Early Math  Khan Academy
331 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathbargraphs/e/solvingproblemswithbargraphs1?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Wat

03:47
Will Your Country Be The First To Sink?
142 views / 0 likes  addedSea 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/

03:52
Ben Eater Eats The Numbers  Counting  Early Math  Khan Academy
562 views / 0 likes  addedLearn 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/earlymath/ccearlymathcountingtopic/ccearlymathnumbers120/e/countfromanynumber?utm_source

03:18
Counting Dollars  Measurement And Data  Early Math  Khan Academy
383 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathmoney/v/countingdollars?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: htt

05:41
Points On Line Of Reflection  Transformations  Geometry  Khan Academy
374 views / 0 likes  addedPoints on line of reflection Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeoreflections/e/definingreflections?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next

14:28
1984 by George Orwell, Part 1: Crash Course Literature 401
257 views / 0 likes  addedIn which John Green returns for a dystopian new season of Crash Course Literature! We're starting with George Orwell's classic look at the totalitarian state that could be in postwar England. Winston Smith is under the eye of Big Brother, and making us t

01:13
Counting In Pictures  Counting  Early Math  Khan Academy
374 views / 0 likes  addedLearn 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/earlymath/ccearlymathcountingtopic/ccearlymathcountobjecttopic/e/countinginscenes?utm_so

03:51
How to Build a Teleporter with Aliens
185 views / 0 likes  addedThe 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

04:00
Why cities are full of uncomfortable benches
203 views / 0 likes  addedThat 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

03:12
Subtracting Hundreds, Tens, And Ones  Early Math  Khan Academy
434 views / 0 likes  addedLearn how to subtract threedigit numbers by subtracting ones, tens, and hundreds. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathaddsub100/ccearlymathsubonestenshundreds/e/sub

01:31
Comparing Small Numbers On The Number Line  Counting  Early Math  Khan Academy
366 views / 0 likes  addedLearn to use a number line to compare numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathcountingtopic/ccearlymathcomparingnumbers/e/comparingnumbersthrough10?utm_source=Y

02:10
Repeated Addition Example  Addition And Subtraction Within 100  Early Math  Khan Academy
376 views / 0 likes  addedLearn 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/earlymath/ccearlymathaddsub100/ccearlymathskipcounting/e/repeatedaddition?utm_so

14:34
Florence and the Renaissance: Crash Course European History #2
23 views / 0 likes  addedThe Renaissance was a cultural revitalization that spread across Europe, and had repercussions across the globe, but one smallish citystate in Italy was in many ways the epicenter of the thing. Florence, or as Italians might say, Firenze, was the home to

02:16
Telling Time Exercise Example 2  Measurement And Data  Early Math  Khan Academy
356 views / 0 likes  addedTell time on unlabeled analog clocks. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathtime/e/telling_time?utm_source=YT&utm_medium=Desc&utm_campaign=Ear

01:32
Formal Translation Tool Example  Transformations  Geometry  Khan Academy
380 views / 0 likes  addedFormal translation tool example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeotranslations/e/definingtranslations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the

04:40
Measuring Lengths 2  Measurement And Data  Early Math  Khan Academy
370 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathmeasuringlength/e/measuringlengths2?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the ne

00:44
Count By Category  Counting  Early Math  Khan Academy
356 views / 0 likes  addedLearn to count the number of things in different categories. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathcountingtopic/ccearlymathcomparingnumbers/e/sortgroupsbycount?utm_so

01:43
Solving Problems With Bar Graphs 2  Measurement And Data  Early Math  Khan Academy
350 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathbargraphs/e/solvingproblemswithbargraphs2?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Wat
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