Search Results: "Introduction To Perimeter  Measurement  PreAlgebra  Khan Academy"
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03:21
Introduction To Perimeter  Measurement  PreAlgebra  Khan Academy
220 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

04:17
Introduction To Area And Unit Squares  Measurement  PreAlgebra  Khan Academy
229 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

07:51
Volume: How To Measure It  Measurement  PreAlgebra  Khan Academy
242 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

20:48
Introduction To Scientific Notation  PreAlgebra  Khan Academy
312 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

03:03
Introduction To Exponents  PreAlgebra  Khan Academy
252 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

10:00
Introduction To Number Systems And Binary  PreAlgebra  Khan Academy
227 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.

03:50
Introduction To Multiplying Decimals  Decimals  PreAlgebra  Khan Academy
286 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

14:13
Introduction To Ratios  Ratios, Proportions, Units, And Rates  PreAlgebra  Khan Academy
343 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

09:36
Negative Numbers Introduction  Negative Numbers And Absolute Value  PreAlgebra  Khan Academy
242 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.

07:00
Abstractness  Introduction To Algebra  Algebra I  Khan Academy
216 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

03:36
Approximating Irrational Number Exercise Example  PreAlgebra  Khan Academy
252 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

07:18
Origins Of Algebra  Introduction To Algebra  Algebra I  Khan Academy
299 views / 0 likes  addedWhere did the word "Algebra" and its underlying ideas come from? Watch the next lesson: https://www.khanacademy.org/math/algebra/introductiontoalgebra/overview_hist_alg/v/abstractness?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Kha

06:55
What Are Variables, Expressions, And Equations?  Introduction To Algebra  Algebra I  Khan Academy
239 views / 0 likes  addedLearn what variables, expressions, and equations really are. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/introductiontoalgebra/feelforequationsandinequalit/e/dependentandindependentvariable

06:17
Solving Percent Problems  Decimals  PreAlgebra  Khan Academy
263 views / 0 likes  addedWe'll use algebra to solve this percent problem. Watch the next lesson: https://www.khanacademy.org/math/prealgebra/decimalsprealg/percentwordprobsprealg/v/solvingpercentproblems2?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the

07:34
Hexadecimal Number System  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
287 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

03:33
Finding A Percentage  Decimals  PreAlgebra  Khan Academy
276 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

04:20
Dividing A Whole Number By A Decimal  Decimals  PreAlgebra  Khan Academy
285 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
200 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

12:49
Scientific Notation Examples  PreAlgebra  Khan Academy
266 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

05:27
Converting Directly From Binary To Hexadecimal  PreAlgebra  Khan Academy
230 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/math/prealgebra/exponentsradicals/Worldofexponents/v/exponentswarmup?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/prealgebra/app

09:16
Adding/subtracting Negative Numbers  PreAlgebra  Khan Academy
293 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=

09:17
Unit Conversion Within The Metric System  PreAlgebra  Khan Academy
241 views / 0 likes  addedMetric unit conversion Watch the next lesson: https://www.khanacademy.org/math/prealgebra/ratesandratios/metricsystemtutorial/v/convertingwithinthemetricsystem?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? http

04:07
Adding And Subtracting Negative Numbers  PreAlgebra  Khan Academy
293 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
289 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

02:49
Percent Word Problem Example 2  Decimals  PreAlgebra  Khan Academy
261 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

03:43
Converting From Decimal To Hexadecimal Representation  PreAlgebra  Khan Academy
229 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

03:00
Inverse Property Of Addition  Arithmetic Properties  PreAlgebra  Khan Academy
312 views / 0 likes  addedThe simple idea that a number plus its negative is 0 Watch the next lesson: https://www.khanacademy.org/math/prealgebra/orderofoperations/arithmetic_properties/v/inversepropertyofmultiplication?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra M

06:56
Exponents And Powers Of Zero Patterns  PreAlgebra  Khan Academy
272 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

02:48
Adding In Binary  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
313 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/

08:13
Prime Numbers  Factors And Multiples  PreAlgebra  Khan Academy
267 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

05:20
Order Of Operations: PEMDAS  Arithmetic Properties  PreAlgebra  Khan Academy
253 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

01:34
Solving Ratio Problems With Graph  PreAlgebra  Khan Academy
271 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

05:05
Solving Ratio Problems With Tables Example 1  PreAlgebra  Khan Academy
203 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

06:14
How To Plot Inequalities On A Number Line  PreAlgebra  Khan Academy
250 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

02:04
Ratio Word Problem: Boys To Girls  PreAlgebra  Khan Academy
248 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

04:31
Number Patterns: Interpreting Relationships  PreAlgebra  Khan Academy
249 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

05:34
Multiplying Positive And Negative Numbers  PreAlgebra  Khan Academy
235 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?

03:52
Converting From Decimal To Binary  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
292 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

03:09
Simplifying Square Roots  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
353 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

04:16
Least Common Multiple Exercise  Factors And Multiples  PreAlgebra  Khan Academy
261 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

08:30
Multiplying And Dividing Negative Numbers  PreAlgebra  Khan Academy
281 views / 0 likes  addedMultiplying and dividing negative numbers Watch the next lesson: https://www.khanacademy.org/math/arithmetic/absolutevalue/abs_value_tutorial/v/absolutevalueandnumberlines?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous less

03:38
Math Patterns Example 1  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
247 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

05:41
Math Patterns Example 2  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
256 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

08:34
LCM And GCF Word Problems  Factors And Multiples  PreAlgebra  Khan Academy
308 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

03:28
Inequality Word Problems  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
306 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

06:20
Greatest Common Factor Explained  Factors And Multiples  PreAlgebra  Khan Academy
227 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/

02:36
Number Patterns: Seeing Relationships  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
250 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

03:40
Multistep Word Problem With Decimals And Subtraction  PreAlgebra  Khan Academy
319 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

00:52
Reading Bar Charts: Basic Example  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
240 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/

02:27
Inequality Word Problem: One Variable  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
249 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

03:21
Rational Number Word Problem With Fractions  PreAlgebra  Khan Academy
274 views / 0 likes  addedWord problems force us to put concepts to work using realworld 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

09:50
Adding And Subtracting Fractions  Fractions  PreAlgebra  Khan Academy
377 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

03:53
Plotting Basic Fractions On The Number Line  Fractions  PreAlgebra  Khan Academy
314 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

04:33
Multiplying Negative And Positive Fractions  Fractions  PreAlgebra  Khan Academy
284 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_

05:51
Equivalent Fractions  Fractions  PreAlgebra  Khan Academy
292 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

06:29
Multiplying Decimals: Place Value And Reordering  Decimals  PreAlgebra  Khan Academy
302 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/

02:39
Comparing Decimals: Ordering From Least To Greatest  Decimals  PreAlgebra  Khan Academy
280 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/

01:11
Subtracting Decimals: Example 1  Decimals  PreAlgebra  Khan Academy
250 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

09:23
Converting Fractions To Decimals  Decimals  PreAlgebra  Khan Academy
313 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

09:15
Mixed Numbers And Improper Fractions  Fractions  PreAlgebra  Khan Academy
294 views / 0 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

09:29
Dividing Decimals With Hundredths Example 3  Decimals  PreAlgebra  Khan Academy
272 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

05:42
Understanding Division Of Fractions  Fractions  PreAlgebra  Khan Academy
265 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/

02:35
Dividing Whole Numbers And Fractions: Studying  Fractions  PreAlgebra  Khan Academy
301 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

03:08
Multiplying Unit Fractions And Whole Numbers  Fractions  PreAlgebra  Khan Academy
302 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

04:25
Multiplying Challenging Decimals  Decimals  PreAlgebra  Khan Academy
244 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

02:32
Dividing Whole Numbers And Fractions: Potpourri  Fractions  PreAlgebra  Khan Academy
282 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

02:36
Converting Decimals To Percents  Decimals  PreAlgebra  Khan Academy
251 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

04:24
Example Of Subtracting Fractions With Unlike Denominators  Fractions  PreAlgebra  Khan Academy
279 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

03:45
Visualizing Equivalent Fractions  Fractions  PreAlgebra  Khan Academy
303 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

04:51
Cube Root Of A Nonperfect Cube  PreAlgebra  Khan Academy
281 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

09:45
Simplifying Radicals  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
314 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

07:14
Negative Exponents  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
296 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

04:00
Finding Factors And Multiples  Factors And Multiples  PreAlgebra  Khan Academy
360 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

02:39
Proportionality Between Side Length And Perimeter  7th Grade  Khan Academy
266 views / 0 likes  addedIs 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/ccseventhgrademath/cc7thratioproportion/cc7thproportionalrel/e/analyzingand

05:02
Positive And Negative Slope  Algebra I  Khan Academy
283 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

08:21
Twovariable Linear Equations And Their Graphs  Algebra I  Khan Academy
210 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

03:36
Introduction to contractions  The Apostrophe  Punctuation  Khan Academy
211 views / 0 likes  addedApostrophes are great at standing in for missing letters, allowing us to shorten words. Paige and David discuss contractions and the Principle of Least Effort. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/theapostrophe/e/

02:36
How To Interpret An Expression With Function Notation  Functions  Algebra I  Khan Academy
264 views / 0 likes  addedSal 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/algebrafunctions/interpretingfunctionnotation

07:37
Introduction to reaction quotient Qc  Chemical equilibrium  Chemistry  Khan Academy
143 views / 0 likes  addedIntroduction to the reaction quotient Qc, and how to use the reaction quotient to predict how the reaction concentrations will change. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its

03:45
Introduction to the possessive  The Apostrophe  Punctuation  Khan Academy
180 views / 0 likes  addedApostrophes can help show when something belongs to someone. Paige and David explain how! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/theapostrophe/e/introductiontothepossessivecase Watch the next lesson: https://www

07:11
Graphing Solutions To Twovariable Linear Equations Example 2  Algebra I  Khan Academy
264 views / 0 likes  addedGraphing solutions to 2 variable linear equations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/solutionstotwovarlinearequations/e/graphingsolutio

05:37
Linear Models Example 2  Algebra I  Khan Academy
214 views / 0 likes  addedMarbles and water in tank Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/linearfunctionsmodeling/e/constructingandinterpretinglinearfunctions?utm_s

08:52
Linear Models Example 1  Algebra I  Khan Academy
264 views / 0 likes  addedLinear model for book reading Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/linearfunctionsmodeling/e/constructingandinterpretinglinearfunctions?u

03:04
How To Create A Function From An Equation (example)  Functions  Algebra I  Khan Academy
221 views / 0 likes  addedSal 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/algebrafunctions/functions

01:40
How To Match Function Input To Output Given The Formula (example)  Algebra I  Khan Academy
205 views / 0 likes  addedSal 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/algebrafunctions/functioninputsandoutputs/e/functions_matching_inputs_outputs?utm_

01:07
How To Match Function Input To Output Given The Graph (example)  Algebra I  Khan Academy
229 views / 0 likes  addedSal 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/algebrafunctions/functioninputsandoutputs/e/functions_matching_inputs_outputs?utm_so

02:40
Interpreting Linear Formulas Example 1  Algebra I  Khan Academy
251 views / 0 likes  addedInterpreting a linear formula Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/interpreting_linear_functions/e/interpretingfeaturesoflinearfunctions?ut

08:23
Constructing Linear Functions Example 2  Algebra I  Khan Academy
194 views / 0 likes  addedLinear model for painting Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/linearfunctionsmodeling/e/constructinglinearfunctionswordproblems?utm_sour

02:35
Interpreting Linear Formulas Example 2  Algebra I  Khan Academy
214 views / 0 likes  addedLinear equation for file transfer Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/interpreting_linear_functions/e/interpretingfeaturesoflinearfunction

03:12
Graphing Linear Functions Example 2  Algebra I  Khan Academy
259 views / 0 likes  addedGraphing equation for filling pool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/linearfunctionsmodeling/e/graphinglinearfunctionswordproblems?utm

06:35
Constructing Linear Functions Example 1  Algebra I  Khan Academy
268 views / 0 likes  addedLinear model for ice sheet thickness Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/linearfunctionsmodeling/e/constructinglinearfunctionswordproble

03:24
How To Interpret An Expression With Function Notation  Functions  Algebra I  Khan Academy
220 views / 0 likes  addedSal 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/algebrafunctions/interpretingfunctionnotation/e/functionnota

05:30
Graphing Linear Functions Example 1  Algebra I  Khan Academy
226 views / 0 likes  addedLearn 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/twovarlinearequationsandintro

02:48
Picture Graphs  Measurement And Data  Early Math  Khan Academy
255 views / 0 likes  addedRead and interpret a picture graph. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlypicturegraphs/e/solvingproblemswithpicturegraphs1?utm_source=YT&utm

07:08
Early Train Word Problem  Linear Equations  Algebra I  Khan Academy
277 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

05:50
Length Word Problems  Measurement And Data  Early Math  Khan Academy
267 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathlengthwordproblems/e/lengthwordproblems?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch t

02:27
Checking Ordered Pair Solutions To Equations Example 2  Algebra I  Khan Academy
226 views / 0 likes  addedSecond example of ordered pair solutions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/solutionstotwovarlinearequations/e/plugging_in_values?utm_so

05:09
Converting From Slopeintercept To Standard Form  Algebra I  Khan Academy
300 views / 0 likes  addedConverting from slopeintercept to standard form Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/standardform/e/converting_between_slope_intercept_and_st

02:35
Checking Ordered Pair Solutions To Equations Example 1  Algebra I  Khan Academy
254 views / 0 likes  addedChecking ordered pair solutions to equations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/solutionstotwovarlinearequations/e/plugging_in_values?ut

03:09
Making Line Plots  Measurement And Data  Early Math  Khan Academy
272 views / 0 likes  addedMaking line plots. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathlineplots/e/creatinglineplots1?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMa

01:43
Solving Problems With Bar Graphs 2  Measurement And Data  Early Math  Khan Academy
234 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

01:26
Introduction to verbs  The parts of speech  Grammar  Khan Academy
196 views / 0 likes  addedLet's explore what verbs are, and what they do! David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammarverbs/e/identifyingverbs?utm_source=YT&utm_medium

04:50
Introduction to the apostrophe  The Apostrophe  Punctuation  Khan Academy
215 views / 0 likes  addedDavid and Paige, KA’s resident grammarians, introduce a new piece of punctuation: the apostrophe! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/thecomma/e/introductiontotheapostrophe Watch the next lesson: https://www.k

03:18
Counting Dollars  Measurement And Data  Early Math  Khan Academy
256 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

02:37
Order By Length  Measurement And Data  Early Math  Khan Academy
276 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

04:40
Measuring Lengths 2  Measurement And Data  Early Math  Khan Academy
256 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

03:07
Comparing Lengths  Measurement And Data  Early Math  Khan Academy
252 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathcompareestimatelength/e/comparinglengths?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch t

02:03
Estimating Lengths  Measurement And Data  Early Math  Khan Academy
253 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathcompareestimatelength/e/estimatinglengths?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch

06:52
Introduction To Partial Pressure  Gases And Kinetic Molecular Theory  Chemistry  Khan Academy
317 views / 0 likes  addedDefinition of partial pressure and Dalton's law of partial pressure. Example of calculating partial pressure of a gas in a mixture from the total pressure and partial pressure of the other gases in the mixture. Chemistry on Khan Academy: Did you know that

01:46
Introduction to verb tense  The parts of speech  Grammar  Khan Academy
184 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/

04:31
Counting American Coins  Measurement And Data  Early Math  Khan Academy
253 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

02:16
Telling Time Exercise Example 2  Measurement And Data  Early Math  Khan Academy
255 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

02:54
Measuring Lengths With Different Units  Measurement And Data  Early Math  Khan Academy
236 views / 0 likes  addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathmeasuringlength/e/measuringlengthswithdifferentunits?utm_source=YT&utm_medium=Desc&utm_campaign=Ear

07:23
Introduction To Transformations  Transformations  Geometry  Khan Academy
259 views / 0 likes  addedIntroduction to transformations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigidtransformationsintro/e/performingtranslationsonthecoordinateplane?utm_source=YT&utm_medium=De

02:51
Telling Time Exercise Example 1  Measurement And Data  Early Math  Khan Academy
254 views / 0 likes  addedTell time on a labeled analog clock. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlymathtime/e/telling_time_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=

04:28
Introduction To Nouns  The Parts Of Speech  Grammar  Khan Academy
254 views / 0 likes  addedDavid, Khan Academy's resident grammarian, introduces you to the most common English part of speech: the noun. Watch the next lesson: https://youtu.be/ETzngG8N3AU About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a pers

04:08
Measuring A Golden Statue  Measurement And Data  Early Math  Khan Academy
289 views / 0 likes  addedMeasure an object with samesize length units that span it with no gaps or overlaps. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/earlymath/ccearlymathmeasuredatatopic/ccearlypicturegraphs/e/solving

02:34
Converting From Standard Form To Slopeintercept Form  Algebra I  Khan Academy
320 views / 0 likes  addedStandard form to slopeintercept form Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/standardform/e/slopefromanequationinstandardform?utm_source=Y

02:57
Reading Bar Graph Examples  Measurement And Data  Early Math  Khan Academy
211 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

04:35
Introduction To Singular And Plural Nouns  The Parts Of Speech  Grammar  Khan Academy
421 views / 0 likes  addedDavid, Khan Academy's resident grammarian, introduces the difference between singular and plural nouns. Watch the next lesson: https://youtu.be/uYgcuyUF7JQ About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalize

02:46
Introduction to Grammar  Grammar  Khan Academy
309 views / 0 likes  addedKhan Academy Grammarian David Rheinstrom welcomes you to his favorite topic: the study of language, its rules, and its conventions. By understanding English – by speaking it, by writing it, by reading this very sentence – you are a grammarian yourself! Wa

01:50
Introduction to verb aspect  The parts of speech  Grammar  Khan Academy
195 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

03:29
Introduction to irregular verbs  The parts of speech  Grammar  Khan Academy
197 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

03:39
Introduction To Subtraction  Basic Addition And Subtraction  Early Math  Khan Academy
263 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

03:11
Introduction To Addition  Basic Addition And Subtraction  Early Math  Khan Academy
239 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_

07:48
Introduction To The SAT Writing & Language Test  Tips & Planning  New SAT  Khan Academy
316 views / 0 likes  addedThis is the last video in our New SAT subject! Missed the previous lesson? https://www.khanacademy.org/testprep/newsat/newsattipsplanning/newsataboutsat/v/satreadingtestintro?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT New SAT (starting M

04:21
Introduction To The SAT Reading Test  Tips & Planning  New SAT  Khan Academy
242 views / 0 likes  addedWatch the next lesson: https://www.khanacademy.org/testprep/newsat/newsattipsplanning/newsataboutsat/v/satwritingtestintro?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previous lesson? https://www.khanacademy.org/testprep/news

05:59
Introduction To Place Value  Place Value (tens And Hundreds)  Early Math  Khan Academy
251 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

08:26
Conjugate acidbase pairs  Acids and bases  Chemistry  Khan Academy
188 views / 0 likes  addedIntroduction to conjugate acidbase pairs. Definition and examples of conjugate acidbase pairs. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivit

01:49
How To Find Two Function Inputs With The Same Output Given Graph (example)  Khan Academy
254 views / 0 likes  addedSal 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/algebrafunctions/functioninputsandoutputs/e/functions_matching_inp

01:51
Possession for words ending in “s”  The Apostrophe  Punctuation  Khan Academy
161 views / 0 likes  addedDo words that end in "s" still need _'s_ to show possession? David and Paige explain! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/theapostrophe/e/introductiontothepossessivecase Watch the next lesson: https://www.kha

07:33
Ways to get a buffer solution  Chemistry  Khan Academy
144 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

04:58
Comparing Fractions Of Different Wholes  Fractions  3th Grade  Khan Academy
327 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

05:12
Ellipses  Punctuation  Khan Academy
163 views / 0 likes  addedEllipses are three little dots that we use to show a pause or that a portion of a quote has been removed. Learn how to use them in this video. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneouspunctuation/e/introd

02:19
How To Determine The Domain Of A Modeling Function (example With A Function)  Khan Academy
262 views / 0 likes  addedSal 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/algebrafunctions/determiningthedomainofafunction/e/interpreting

01:37
Translation Example  Transformations  Geometry  Khan Academy
263 views / 0 likes  addedTranslation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigidtransformationsintro/e/performingtranslationsonthecoordinateplane?utm_source=YT&utm_medium=Desc&utm_campa

07:57
Le Chatelier's principle: Worked example  Chemical equilibrium  Chemistry  Khan Academy
202 views / 0 likes  addedA worked example using Le Chatelier's principle to predict how concentrations will shift for different perturbations. Example includes changes in reaction vessel volume, changing amount of solid product, adding inert gas, and adding a catalyst. Chemistry

06:20
Dashes  Punctuation  Khan Academy
164 views / 0 likes  addedDashes are like little actors—they can behave like colons, pairs of commas, or parentheses. Learn how to use them in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneouspunctuation/e/introductiontothe

04:09
Parentheses  Punctuation  Khan Academy
108 views / 0 likes  addedParentheses set off extra information (such as a writer's remarks, an interruption, or a reference) from the rest of a sentence. Learn how to use them in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneo

05:57
Phrases and clauses  Syntax  Khan Academy
203 views / 0 likes  addedA phrase is any collection of words that behaves like a part of speech, like a noun phrase (“my brother Stu”), an adjectival phrase (“in a different shade of blue”), or an adverbial phrase (“with elegance and tact”). A clause is any noun phrase plus a ver

06:47
Noble Gas Configuration  Electronic Structure Of Atoms  Chemistry  Khan Academy
278 views / 0 likes  addedHow to write electron configurations for atoms and monatomic ions using noble gas configuration Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity

11:47
Bond enthalpy and enthalpy of reaction  Chemistry  Khan Academy
168 views / 0 likes  addedIntroduction to bond enthalpy, and how to use bond enthalpies to calculate enthalpy of reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/thermodynamicschemistry/enthalpychemistrysal/v/2015apchemistryfreeresponse7?utm_s

02:01
The present tense  The parts of speech  Grammar  Khan Academy
186 views / 0 likes  addedHow do we talk about things that are happening right now? Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammarverbs/v/thepasttenseverbsthepartsofspeech?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Misse

02:54
Helping verbs  The parts of speech  Grammar  Khan Academy
231 views / 0 likes  addedWe've established that verbs can show actions and link ideas together. Now, let's talk about how some verbs can be used to help other verbs. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/gra

05:53
Comparing Q vs K example  Chemical equilibrium  Chemistry  Khan Academy
163 views / 0 likes  addedA worked example using reaction quotient Q to predict how concentrations will shift so the reaction can get to equilibrium. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acidsandbasestopic/acidsandbases/v/arrheniusdefinitiono

07:14
Calculating internal energy and work example  Chemistry  Khan Academy
170 views / 0 likes  addedWorked example calculating the change in internal energy for a gas using the first law of thermodynamics. Watch the next lesson: https://www.khanacademy.org/science/chemistry/thermodynamicschemistry/internalenergysal/v/specificheatandlatentleatof

07:50
pH and pKa relationship for buffers  Chemistry  Khan Academy
345 views / 0 likes  addedHow the HendersonHasselbalch equation can be used to look at the ratio of conjugate acid and base using relationship between buffer pH and pKa. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acidbaseequilibrium/buffersolutions/v/

02:38
Graphing Linear Equations — Harder Example  Math  New SAT  Khan Academy
267 views / 0 likes  addedWatch Sal work through a harder Graphing linear equations problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatheartofalgebra/v/satmathh3easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the

06:13
Rate constant k from halflife example  Knetics  Chemistry  Khan Academy
142 views / 0 likes  addedExample problem showing how to find the rate constant k from the halflife of a first order reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chemkinetics/copyofkinetics/v/secondorderreactionwithcalculus?utm_source=YT&u

03:59
Meet the Comma  Punctuation  Grammar  Khan Academy
197 views / 0 likes  addedDavid and Paige introduce you to the superhero of the punctuation world: the comma! Practice this yourself on Khan Academy right now: . Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/

02:55
Linear Equation Word Problems — Basic Example  Math  New SAT  Khan Academy
403 views / 0 likes  addedWatch Sal work through a basic Linear equations word problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatheartofalgebra/v/satmathh2easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the prev

15:46
Linear Algebra: Introduction to Linear Independence
220 views / 0 likes  addedLinear Algebra: Introduction to linear dependence and independence More free lessons at: http://www.khanacademy.org/video?v=CrV1xCWdYg

38:29
Khan Academy Live: SAT Reading Class
225 views / 0 likes  addedNeed help with SAT reading? Join Eric, one of Khan Academy’s SAT experts, for an SAT reading class. During class, Eric explains a proactive approach to answering reading questions and walks through some of the most common types of questions. This is an ed

03:00
Appositives  Punctuation  Grammar  Khan Academy
157 views / 0 likes  addedDavid and Paige, KA’s resident grammarians, cover appositives and how to use commas along with them. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/e/appositives?utm_source=YT&utm_med

03:43
BONUS: The Oxford comma  Punctuation  Grammar  Khan Academy
168 views / 0 likes  addedDavid and Paige tackle the great comma debate of our time: Oxford comma or no Oxford comma? Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/v/appositivesthecommapunctuationkhanacademy?utm_source=YT&utm

02:31
Choosing between its and it’s  The Apostrophe  Punctuation  Khan Academy
154 views / 0 likes  addedDavid and Paige explain the meaning of two English words that look and sound very similar but act very different: _its_ and _it's_. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/theapostrophe

03:24
More uses for commas  Punctuation  Grammar  Khan Academy
174 views / 0 likes  addedDavid and Paige, KA’s resident grammarians, discuss tag questions, yes and no statements, and direct address  all situations where the comma is super useful. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/v/c

02:28
Drawing Line Of Reflection  Transformations  Geometry  Khan Academy
291 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

02:18
Salutations and valedictions  Punctuation  Grammar  Khan Academy
149 views / 0 likes  addedDavid and Paige, KA’s resident grammarians, talk about how to address and sign off on letters using commas! Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/v/commasinspaceandtimethecommapunctuationkhana

03:00
Commas in dialogue  Punctuation  Grammar  Khan Academy
211 views / 0 likes  added“Today we’re going to talk about using commas in dialogue,” said David and Paige, KA’s resident grammarians. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/e/commasindialogue?utm_so

01:51
Punctuating a list  Punctuation  Grammar  Khan Academy
186 views / 0 likes  addedLearn how to use commas to punctuate a written list of people, things, actions, or events. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/e/punctuatinglists?utm_source=YT&utm_medium=

01:53
The funky ed irregular verb  The parts of speech  Grammar  Khan Academy
193 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

03:32
Three types of sentence  Syntax  Khan Academy
195 views / 0 likes  addedThree essential types of sentence are declarative sentences (which are statements), interrogative sentences (which are questions), and imperative sentences (which are orders). Join us as we give examples of each! Practice this yourself on Khan Academy rig

01:25
Using Rotation Widget  Transformations  Geometry  Khan Academy
274 views / 0 likes  addedUsing rotation widget Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigidtransformationsintro/e/performingrotationsonthecoordinateplane?utm_source=YT&utm_medium=Desc&utm_campai

04:19
Dangling modifiers  Syntax  Khan Academy
193 views / 0 likes  addedA modifying word or phrase “dangles” when it doesn’t apply to the word it’s supposed to modify. Learn how to spot and fix this problem! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/danglingmodifiers/ Watch the ne

07:04
Dependent and independent clauses  Syntax  Khan Academy
227 views / 0 likes  addedIndependent clauses can stand on their own as sentences, but dependent clauses can’t. We’ll take a closer look at what this means. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/dependentandindependentclauses Wat

08:13
Points After Rotation  Transformations  Geometry  Khan Academy
253 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

02:46
Defining Rotation Example  Transformations  Geometry  Khan Academy
271 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

01:48
Using Reflection Tool  Transformations  Geometry  Khan Academy
333 views / 0 likes  addedUsing reflection tool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigidtransformationsintro/e/performingreflectionsonthecoordinateplane?utm_source=YT&utm_medium=Desc&utm_camp

04:53
Subjectverb agreement  Syntax  Khan Academy
207 views / 0 likes  addedAgreement is the art of making sure that sentence parts agree with one another; you want to make sure that your subjects and verbs match up. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/subjectverbagreement Watc

03:48
Recognizing fragments  Syntax  Khan Academy
165 views / 0 likes  addedA sentence fragment is a chunk of language that hasn’t made it all the way to being a working sentence; it might be missing a verb, or there might not be a subject. Learn how to turn a fragment into a sentence in this video! Practice this yourself on Khan

04:11
Advanced (plural) possession  The Apostrophe  Punctuation  Khan Academy
190 views / 0 likes  addedPaige and David talk about using apostrophes to show that something belongs to multiple people. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/theapostrophe/e/advanvedpluralpossesion Watch

06:08
Beginning sentences with conjunctions  The parts of speech  Grammar  Khan Academy
172 views / 0 likes  addedIs it okay to begin a sentence with a conjunction like "but" or "because"? Yes. David explains why. Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/v/correlativeconjunctions?utm_source=YT&utm_medium=D

02:51
Apostrophes and plurals  The Apostrophe  Punctuation  Khan Academy
151 views / 0 likes  addedThere is *one* extremely rare case in which we use apostrophes to make things plural. David and Paige, KA's resident grammarians, discuss this unusual case. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/p

01:55
Drawing Image Of Translation  Transformations  Geometry  Khan Academy
294 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

02:34
Subjects and predicates  Syntax  Khan Academy
150 views / 0 likes  addedA subject is the noun or pronounbased part of a sentence, and a predicate is the verbbased part that the subject performs. Let’s explore how that works in context. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/id

04:14
Compoundcomplex sentences  Syntax  Khan Academy
246 views / 0 likes  addedCompoundcomplex sentences are compound sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot and use them. Practice this yourself on Khan Academy right now www.khanacademy.org/syntax/e/complexandcompoundcom

02:52
Three ways to end a sentence  Punctuation  Khan Academy
157 views / 0 likes  addedDavid and Paige, KA’s resident grammarians, introduce the three ways to end a sentence: the period, the exclamation point, and the question mark. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/thecomma/e/threewaystoenda

03:19
Commas in space and time  The Comma  Punctuation  Khan Academy
175 views / 0 likes  addedLearn how to use commas when writing addresses (in space) and dates (in time). Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/thecomma/e/salutationsvaledictionsdatesandaddresses Watch t

04:35
Commas and introductory elements  Punctuation  Grammar  Khan Academy
168 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

04:07
Pronounantecedent agreement  Syntax  Khan Academy
171 views / 0 likes  addedAn antecedent is “the thing that came before”. When you use a pronoun, it’s standing in for a word you used previously—that’s the antecedent. Join us as we demonstrate how to make sure that your pronouns and antecedents match up with one another: that’s c

04:29
Simple and compound sentences  Syntax  Khan Academy
229 views / 0 likes  addedA simple sentence contains one independent clause. A compound sentence contains more than one! Put another way: a simple sentence contains a subject and a predicate, but a compound sentence contains more than one subject and more than one predicate. Pract

10:32
Rotating About Arbitrary Point  Transformations  Geometry  Khan Academy
268 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:

00:59
Average Height Of A Building's Floor  Multiplication And Division  3th Grade  Khan Academy
248 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

04:18
How to use italics and underlines  Punctuation  Khan Academy
173 views / 0 likes  addedLearn how to use italics and underlines when writing the titles of works or when emphasizing a particular word or phrase. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneouspunctuation/e/italicsunderlinesandqu

02:50
Exclamations  Syntax  Khan Academy
165 views / 0 likes  addedAn exclamation is a sentence that expresses great emotion! David and Paige covered declarative, interrogative, and imperative sentences; now they tackle a fourth type of sentence that ends in an exclamation mark. Find out more! Watch the next lesson: http

07:19
Reflecting Segments Over Line  Transformations  Geometry  Khan Academy
248 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

05:07
Complex sentences  Syntax  Khan Academy
163 views / 0 likes  addedComplex sentences are simple sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot them and use them in this video. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/syntax/v/compoundcomple

01:32
Formal Translation Tool Example  Transformations  Geometry  Khan Academy
259 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

05:41
Points On Line Of Reflection  Transformations  Geometry  Khan Academy
267 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

04:44
Relative clauses  Syntax  Khan Academy
181 views / 0 likes  addedA relative pronoun is a word like “that” or “which” or “who”, so a relative clause is a clause that begins with a relative pronoun. In the sentence “The dragon who breathed blue fire has retired,” “who breathed blue fire” is a relative clause. Learn more

07:23
Irregular Plural Nouns, Part II  The Parts Of Speech  Grammar  Khan Academy
224 views / 0 likes  addedThe plural of "whale" is "whales", but what's the plural of "child"? David, Khan Academy's resident grammarian, explains. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower

04:34
What is a sentence?  Syntax  Khan Academy
136 views / 0 likes  addedA sentence is a grammatically complete idea. All sentences have a noun or pronoun component called the subject, and a verb part called the predicate. David and Paige explore this division across several different example sentences. Watch the next lesson:

05:05
Parallel structure  Syntax  Khan Academy
189 views / 0 likes  addedParallel structure isn’t a set rule, but more of a stylistic choice: it helps sentence elements maintain a pattern. This is a very special episode because it’s Paige’s last video with us as a KA intern! We will miss having Paige as a contributor to the Gr

02:34
Irregular Plural Nouns, Part I  The Parts Of Speech  Grammar  Khan Academy
212 views / 0 likes  addedThe plural of "dog" is "dogs", but what is the plural of "leaf"? Khan Academy's resident grammarian explains. Watch the next lesson: https://youtu.be/n9poHOKkF28 About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a perso

1:02:11
Khan Academy Live: SAT Writing Class
185 views / 0 likes  addedNeed help with SAT writing? Join Eric, one of Khan Academy’s SAT experts, for an SAT writing class. Eric walks through key grammar concepts like subjectverb agreement and sentence punctuation. This is an edited version of our livestream from March 9, 201

05:03
Indefinite Pronouns  The parts of speech  Grammar  Khan Academy
156 views / 0 likes  addedDavid, Khan Academy's Grammar Fellow, covers three nifty features of indefinite pronouns, which are pronouns that are just a little vague, y'know? Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspee

04:51
Hyphens vs. dashes  Punctuation  Khan Academy
158 views / 0 likes  addedHyphens and dashes look pretty similar, but their uses are very different! Learn when to use each one in this video. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneouspunctuation/e/dashesandhyphens Watch the nex

04:38
Runons and comma splices  Syntax  Khan Academy
166 views / 0 likes  addedA runon sentence doesn’t separate any of its independent clauses with the punctuation that it needs, and a comma splice incorrectly separates two independent clauses with a comma, instead of a commaandcoordinatingconjunction. Practice this yourself on

02:45
Progressive Aspect  The parts of speech  Grammar  Khan Academy
191 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
169 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

02:31
Perfect Aspect  The parts of speech  Grammar  Khan Academy
176 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
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