Search Results: "Congruence And Similarity Basic Example  Math  New SAT  Khan Academy"
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05:05
Parallel structure  Syntax  Khan Academy
212 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

04:35
Commas and introductory elements  Punctuation  Grammar  Khan Academy
182 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

04:44
Relative clauses  Syntax  Khan Academy
204 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

05:57
Phrases and clauses  Syntax  Khan Academy
230 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

07:08
Early Train Word Problem  Linear Equations  Algebra I  Khan Academy
300 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

04:38
Runons and comma splices  Syntax  Khan Academy
178 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

05:03
Indefinite Pronouns  The parts of speech  Grammar  Khan Academy
168 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

03:13
Using quotation marks in titles  Punctuation  Khan Academy
148 views / 0 likes  addedLearn how to use quotation marks to title things like poems, songs, and episodes of TV shows. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneouspunctuation/e/italicsunderlinesandquotes/ Watch the next lesson:

02:45
Progressive Aspect  The parts of speech  Grammar  Khan Academy
204 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
186 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

04:47
Who versus whom  The parts of speech  Grammar  Khan Academy
165 views / 0 likes  addedWhen do you use who, and when do you use whom? David, KA's grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/thepronoun/e/relativepronouns?utm_source=YT&utm_medium=Desc&u

03:29
Basic Math: Dividing Fractions
296 views / 0 likes  addedBasic Math: Dividing Fractions. In this video, I do two examples. In the first I divide a whole number by a fraction and in the second I divide a fraction by a fraction. For more free math videos, visithttp://JustMathTutoring.com

06:47
Noble Gas Configuration  Electronic Structure Of Atoms  Chemistry  Khan Academy
307 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

04:42
How To Write Algebraic Expressions From Word Problems  6th Grade  Khan Academy
452 views / 0 likes  addedLearn how to write expressions with variables to describe situations described in word problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6thexpressionsandvariables/cc6thalge

02:31
Perfect Aspect  The parts of speech  Grammar  Khan Academy
189 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

01:26
Introduction to verbs  The parts of speech  Grammar  Khan Academy
210 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

02:01
The present tense  The parts of speech  Grammar  Khan Academy
195 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

01:37
Translation Example  Transformations  Geometry  Khan Academy
295 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

04:33
Coordinating conjunctions  The parts of speech  Grammar  Khan Academy
208 views / 0 likes  addedCoordinating conjunctions connect parts of sentences to each other. David explains how. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/meettheconjunction?utm_source=YT&utm_me

03:15
Personal pronouns  The parts of speech  Grammar  Khan Academy
190 views / 0 likes  addedLet's meet the personal pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/thepronoun/e/meetthepersonalpronoun?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Watch the next less

02:00
What is a pronoun?  The parts of speech  Grammar  Khan Academy
181 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
198 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

02:00
The past tense  The parts of speech  Grammar  Khan Academy
218 views / 0 likes  addedWhen you want to talk about events that have already happened, you use the past tense. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammarverbs/v/thefuturetenseverbsthepartsofspeech?utm_source=YT&utm_medium=

02:55
Emphatic pronouns  The parts of speech  Grammar  Khan Academy
173 views / 0 likes  addedSometimes we use reflexive pronouns like "myself" and "ourselves" for emphasis in a sentence, like, "If you won't help me, then I'll do it myself!" KA's Grammar Fellow, David, explains this usage. Practice this yourself on Khan Academy right now: https://

02:53
The truly irregular verbs  The parts of speech  Grammar  Khan Academy
176 views / 0 likes  addedSome irregular verbs just won't be categorized. They don't fit into neat little boxes. These are those verbs. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammarverbs/e/introtoirregular

02:50
The future tense  The parts of speech  Grammar  Khan Academy
215 views / 0 likes  addedWhen you want to talk about the future in English, you use the future tense. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammarverbs/v/linkingverbsthepartsofspeechgrammar?utm_source=YT&utm_medium=Desc&utm_ca

03:12
Correlative conjunctions  The parts of speech  Grammar  Khan Academy
237 views / 0 likes  addedCorrelative conjunctions work in pairs to connect parts of sentences. David teaches you how they do it! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/correlativeconjuntions?u

05:27
Subordinating conjunctions  The parts of speech  Grammar  Khan Academy
187 views / 0 likes  addedSubordinating conjunctions join two parts of complex sentences––independent clauses to dependent clauses. David explains how. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/coo

05:41
That versus which  The parts of speech  Grammar  Khan Academy
190 views / 0 likes  addedMuch has been made of the distinction between "that" and "which" in English, but it can mostly be summed up in two points: 1. "That" doesn't work so well with commas. 2. "Which" doesn't work so well with people. David the Grammarian explains. Watch the ne

01:50
Introduction to verb aspect  The parts of speech  Grammar  Khan Academy
206 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

09:03
BONUS VIDEO  Singular They  The parts of speech  Grammar  Khan Academy
173 views / 0 likes  addedYou may have been hearing a lot about the "singular they" recently. But what is it? How does it work, what is its history, and is it grammatical? Let's find out. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/themodif

02:54
Helping verbs  The parts of speech  Grammar  Khan Academy
244 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

02:28
Drawing Line Of Reflection  Transformations  Geometry  Khan Academy
317 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

05:10
Reflexive pronouns  The parts of speech  Grammar  Khan Academy
191 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

01:25
Using Rotation Widget  Transformations  Geometry  Khan Academy
285 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

00:59
Average Height Of A Building's Floor  Multiplication And Division  3th Grade  Khan Academy
270 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

04:53
Modal verbs  The parts of speech  Grammar  Khan Academy
203 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

01:56
Relative pronouns  The parts of speech  Grammar  Khan Academy
231 views / 0 likes  addedWe use the relative pronouns to connect clauses together, like "the man *who sold the world* is coming over for dinner." David, KA's Grammar Fellow, explains. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/thepronoun/

08:13
Points After Rotation  Transformations  Geometry  Khan Academy
288 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

05:18
Pronoun number  The parts of speech  Grammar  Khan Academy
228 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

02:46
Defining Rotation Example  Transformations  Geometry  Khan Academy
303 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
369 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

03:02
Linking verbs  The parts of speech  Grammar  Khan Academy
388 views / 0 likes  addedIn a previous video, we established that one thing verbs can do is show actions, like "the bear runs." Verbs can also link ideas to one another, like "the bear looks cheerful." Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofs

02:46
Introduction to Grammar  Grammar  Khan Academy
335 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

05:02
Positive And Negative Slope  Algebra I  Khan Academy
296 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

05:37
Linear Models Example 2  Algebra I  Khan Academy
228 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

01:55
Drawing Image Of Translation  Transformations  Geometry  Khan Academy
320 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

02:11
Perfect progressive aspect  The parts of speech  Grammar  Khan Academy
181 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

05:53
Comparing Q vs K example  Chemical equilibrium  Chemistry  Khan Academy
171 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

05:34
Subject and object pronouns  The parts of speech  Grammar  Khan Academy
164 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

04:05
How To Find Mistakes In One Step Equations  6th Grade  Khan Academy
302 views / 0 likes  addedLearn how to spot mistakes in someone else's work as they attempt to solve onestep equations. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6thequationsandinequalities/cc6thonest

04:39
Grammatical person and pronouns  The parts of speech  Grammar  Khan Academy
189 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

08:52
Linear Models Example 1  Algebra I  Khan Academy
288 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

10:32
Rotating About Arbitrary Point  Transformations  Geometry  Khan Academy
290 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:

07:14
Calculating internal energy and work example  Chemistry  Khan Academy
193 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

07:19
Reflecting Segments Over Line  Transformations  Geometry  Khan Academy
277 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

01:32
Formal Translation Tool Example  Transformations  Geometry  Khan Academy
290 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
292 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

07:50
pH and pKa relationship for buffers  Chemistry  Khan Academy
364 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/

06:52
Introduction To Partial Pressure  Gases And Kinetic Molecular Theory  Chemistry  Khan Academy
346 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

08:21
Twovariable Linear Equations And Their Graphs  Algebra I  Khan Academy
219 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

01:46
Introduction to verb tense  The parts of speech  Grammar  Khan Academy
197 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/

04:50
Introduction to the apostrophe  The Apostrophe  Punctuation  Khan Academy
238 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

02:40
Interpreting Linear Formulas Example 1  Algebra I  Khan Academy
274 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

06:13
Rate constant k from halflife example  Knetics  Chemistry  Khan Academy
153 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

08:23
Constructing Linear Functions Example 2  Algebra I  Khan Academy
204 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

07:33
Ways to get a buffer solution  Chemistry  Khan Academy
159 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

03:11
The vowelshift irregular verb  The parts of speech  Grammar  Khan Academy
190 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

04:52
Possessive pronouns  The parts of speech  Grammar  Khan Academy
246 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

04:21
How To Write Onestep Equations For Word Problems  6th Grade  Khan Academy
399 views / 0 likes  addedLearn how to write basic equations to model realworld situations. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6thequationsandinequalities/cc6thsuperyoga/e/equationsinonevari

02:35
Interpreting Linear Formulas Example 2  Algebra I  Khan Academy
230 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
276 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
291 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

03:29
Introduction to irregular verbs  The parts of speech  Grammar  Khan Academy
210 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

03:04
How To Create A Function From An Equation (example)  Functions  Algebra I  Khan Academy
230 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

03:53
Missing Number For Addition And Subtraction Within 1000  3th Grade  Khan Academy
331 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

05:30
Graphing Linear Functions Example 1  Algebra I  Khan Academy
240 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

04:01
Comparing Values With Calculator  Numbers And Operations  8th Grade  Khan Academy
308 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

01:49
How To Find Two Function Inputs With The Same Output Given Graph (example)  Khan Academy
267 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

01:40
How To Match Function Input To Output Given The Formula (example)  Algebra I  Khan Academy
215 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_

01:53
The funky ed irregular verb  The parts of speech  Grammar  Khan Academy
205 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

01:07
How To Match Function Input To Output Given The Graph (example)  Algebra I  Khan Academy
241 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

04:10
Approximating With Powers Of 10  Numbers And Operations  8th Grade  Khan Academy
283 views / 0 likes  addedLearn how to approximate how much larger the world population was than the US population in 2014. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cceighthgrademath/cc8thnumbersoperations/cc8thordersof

03:24
How To Interpret An Expression With Function Notation  Functions  Algebra I  Khan Academy
232 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

02:41
Multiplying Multiples Of Powers Of 10  Numbers And Operations  8th Grade  Khan Academy
282 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

02:36
How To Interpret An Expression With Function Notation  Functions  Algebra I  Khan Academy
286 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

02:27
Checking Ordered Pair Solutions To Equations Example 2  Algebra I  Khan Academy
240 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

07:11
Graphing Solutions To Twovariable Linear Equations Example 2  Algebra I  Khan Academy
296 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

05:09
Converting From Slopeintercept To Standard Form  Algebra I  Khan Academy
322 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
278 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

10:00
Introduction To Number Systems And Binary  PreAlgebra  Khan Academy
240 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.

05:27
Converting Directly From Binary To Hexadecimal  PreAlgebra  Khan Academy
239 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

03:43
Converting From Decimal To Hexadecimal Representation  PreAlgebra  Khan Academy
242 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

06:29
How To Use The Distributive Property With Variables  6th Grade  Khan Academy
318 views / 0 likes  addedLearn how to apply the distributive property to algebraic expressions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6thexpressionsandvariables/cc6thdistributiveproperty/e/distrib

04:57
Irregular plural nouns  foreign plurals  The parts of speech  Grammar  Khan Academy
228 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

01:46
Movie Ticket Proportionality  7th Grade  Khan Academy
220 views / 0 likes  addedWhen going to the movies, is the price you pay proportional to the number of tickets you buy? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccseventhgrademath/cc7thratioproportion/cc7thproportionalre

02:48
Adding In Binary  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
341 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/

04:32
The Zeroth Power  Arithmetic Operations  6th Grade  Khan Academy
254 views / 0 likes  addedLearn why a number raised to the zero power equals 1. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6tharithmeticoperations/cc6thexponents/e/positive_and_zero_exponents?utm_source=Y

02:39
Proportionality Between Side Length And Perimeter  7th Grade  Khan Academy
289 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

03:03
Introduction To Exponents  PreAlgebra  Khan Academy
274 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

12:49
Scientific Notation Examples  PreAlgebra  Khan Academy
280 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

08:30
Multiplying And Dividing Negative Numbers  PreAlgebra  Khan Academy
305 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

07:34
Hexadecimal Number System  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
308 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

03:21
Introduction To Perimeter  Measurement  PreAlgebra  Khan Academy
231 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

09:17
Unit Conversion Within The Metric System  PreAlgebra  Khan Academy
263 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

06:14
How To Plot Inequalities On A Number Line  PreAlgebra  Khan Academy
277 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

03:52
Converting From Decimal To Binary  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
312 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

04:58
Comparing Fractions Of Different Wholes  Fractions  3th Grade  Khan Academy
349 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

03:27
How To Evaluate Expressions In Two Variables With Decimals And Fractions  6th Grade  Khan Academy
386 views / 0 likes  addedLearn how to evaluate expressions that have two different variables in them by using a technique called substitution (or "plugging in"). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6t

02:57
Banana Proportionality  Rated And Proportional Relationships  7th Grade  Khan Academy
272 views / 0 likes  addedA proportionality problem about eating bananas Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccseventhgrademath/cc7thratioproportion/cc7thproportionalrel/e/analyzingandidentifyingproportionalrela

04:31
Number Patterns: Interpreting Relationships  PreAlgebra  Khan Academy
260 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

02:54
How To Describe Realworld Situations With Inequalities  6th Grade  Khan Academy
233 views / 0 likes  addedLearn how to write inequalities to model realworld situation. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6thequationsandinequalities/cc6thinequalities/e/inequalitiesinonevar

01:35
Seeing Circle Similarity Through Translation And Dilation
237 views / 0 likes  addedSeeing circle similarity through translation and dilation

20:48
Introduction To Scientific Notation  PreAlgebra  Khan Academy
339 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

10:57
BONUS: History of the possessive apostrophe  The Apostrophe  Punctuation  Khan Academy
216 views / 0 likes  addedDavid, Paige, and Jake cover the fascinating history of the possessive apostrophe. Stay tuned for this bonus video! Missed the previous lesson? Watch here: https://www.khanacademy.org/humanities/grammar/punctuation/theapostrophe/v/bonushistoryoftheap

03:00
Inverse Property Of Addition  Arithmetic Properties  PreAlgebra  Khan Academy
335 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

03:46
Testing Whether Area Is Proportional To Side Length  7th Grade  Khan Academy
247 views / 0 likes  addedIs the volume of a square proportional to the side length of the square? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccseventhgrademath/cc7thratioproportion/cc7thproportionalrel/e/analyzingandide

06:17
Solving Percent Problems  Decimals  PreAlgebra  Khan Academy
284 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

04:32
How To Solve Onestep Equations With Fractions And Decimals  6th Grade  Khan Academy
441 views / 0 likes  addedLearn how to solve onestep addition and subtraction equations that have fractions and decimals in them. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6thequationsandinequalities/cc

03:36
Approximating Irrational Number Exercise Example  PreAlgebra  Khan Academy
264 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

07:00
Abstractness  Introduction To Algebra  Algebra I  Khan Academy
230 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

05:34
Multiplying Positive And Negative Numbers  PreAlgebra  Khan Academy
259 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?

06:56
Exponents And Powers Of Zero Patterns  PreAlgebra  Khan Academy
295 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

03:33
Finding A Percentage  Decimals  PreAlgebra  Khan Academy
300 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

02:07
Percentage Of A Whole Number  Decimals  PreAlgebra  Khan Academy
214 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

07:40
Comparing Numbers Represented In Different Ways  4th Grade  Khan Academy
265 views / 0 likes  addedExamples of Khan Academy practice problems where you compare decimals, fractions, and number diagrams. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thdecimals/cc4thcomparedecimal

05:15
Thinking About The Changing Values Of Variables And Expressions  6th Grade  Khan Academy
224 views / 0 likes  addedExplore how the value of an algebraic expression changes as the value of its variable changes. The algebraic expressions used in this video are 100x, 5/x + 5, and (3y)/(2y). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacad

08:13
Prime Numbers  Factors And Multiples  PreAlgebra  Khan Academy
290 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

02:36
Number Patterns: Seeing Relationships  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
277 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

03:28
Inequality Word Problems  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
333 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

05:20
Order Of Operations: PEMDAS  Arithmetic Properties  PreAlgebra  Khan Academy
273 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

04:20
Dividing A Whole Number By A Decimal  Decimals  PreAlgebra  Khan Academy
309 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

03:40
Comparing Decimals Visually Example  4th Grade  Khan Academy
278 views / 0 likes  addedLearn how to compare decimals using grid diagrams. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thdecimals/cc4thcomparedecimalsvisually/e/comparingdecimalsvisually?utm_source=

09:16
Adding/subtracting Negative Numbers  PreAlgebra  Khan Academy
318 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=

04:43
Subject, direct object, and indirect object  Syntax  Khan Academy
165 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

07:51
Volume: How To Measure It  Measurement  PreAlgebra  Khan Academy
271 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

11:47
Bond enthalpy and enthalpy of reaction  Chemistry  Khan Academy
181 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

01:34
Solving Ratio Problems With Graph  PreAlgebra  Khan Academy
296 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
216 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

02:04
Ratio Word Problem: Boys To Girls  PreAlgebra  Khan Academy
260 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

03:40
Multistep Word Problem With Decimals And Subtraction  PreAlgebra  Khan Academy
333 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

04:17
Introduction To Area And Unit Squares  Measurement  PreAlgebra  Khan Academy
244 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

04:07
Adding And Subtracting Negative Numbers  PreAlgebra  Khan Academy
306 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

02:04
Comparing Numbers Of Objects  Counting  Early Math  Khan Academy Bangla
284 views / 1 likes  added 
02:27
Inequality Word Problem: One Variable  Applying Mathematical Reasoning  PreAlgebra  Khan Academy
263 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

06:55
Place Value For Decimals Greater Than One (examples)  4th Grade  Khan Academy
275 views / 0 likes  addedUnderstand decimal numbers that are greater than 1. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thdecimals/cc4thdecimalsgreaterthanone/e/decimalsgreaterthanoneintuition?ut

03:09
Simplifying Square Roots  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
380 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

1:10:07
Khan Academy Live: AP Calculus
189 views / 0 likes  addedTaking AP Calculus? Prep for the exam with our free live tutoring session. Dave, one of our calculus experts, will review key concepts, solve sample questions, and share ways to avoid common mistakes. Prep for your AP Calculus exams on Khan Academy: https

04:08
Plotting Decimal Numbers On A Number Line (examples)  Khan Academy
259 views / 0 likes  addedLearn how to find decimals with hundredths on a number line. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thdecimals/cc4thdecimalsnumberline/e/decimals_on_the_number_line_2?utm_

03:50
Adjectives and commas  Adjectives  Khan Academy
190 views / 0 likes  addedWhen using more than one adjective, sometimes you put a comma between them and sometimes you don't. Learn how to tell when you need a comma in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/themodifier/e/commas

02:49
Percent Word Problem Example 2  Decimals  PreAlgebra  Khan Academy
274 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

03:45
Visualizing Equivalent Fractions  Fractions  PreAlgebra  Khan Academy
327 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

04:16
Least Common Multiple Exercise  Factors And Multiples  PreAlgebra  Khan Academy
289 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

03:21
Rational Number Word Problem With Fractions  PreAlgebra  Khan Academy
299 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

05:40
BONUS: History of the apostrophe  The Apostrophe  Punctuation  Khan Academy
165 views / 0 likes  addedThe apostrophe has a bizarre history, including being the name for something that's not really related to grammar at all. David, Paige, and special guest Jake explain. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/thea

07:23
Introduction To Transformations  Transformations  Geometry  Khan Academy
285 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

09:43
Exponent Rules Part 1  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
315 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

03:06
Decimal Intuition With Grids (examples)  Decimals  4th Grade  Khan Academy
310 views / 0 likes  addedDeepen your understanding of decimal numbers by thinking about grid diagrams. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thdecimals/cc4thdecimalsintro/e/decimalintuitionwith

06:55
What Are Variables, Expressions, And Equations?  Introduction To Algebra  Algebra I  Khan Academy
250 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

04:37
Fractiondecimal Intuition Problems (examples)  4th Grade  Khan Academy
267 views / 0 likes  addedUnderstand the connection between decimals and fractions using a grid diagram. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thdecimals/cc4thdecimalfractions/e/fractiondecimalin

02:19
How To Determine The Domain Of A Modeling Function (example With A Function)  Khan Academy
286 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

06:20
Greatest Common Factor Explained  Factors And Multiples  PreAlgebra  Khan Academy
241 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/

02:34
Converting From Standard Form To Slopeintercept Form  Algebra I  Khan Academy
343 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

04:20
Visually Converting From Tenths To Hundredths  4th Grade  Khan Academy
277 views / 0 likes  addedLearn how to convert fractions from tenths to hundredths using grid diagrams. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thfractionstopic/cc4thfractionsunlikedenom/e/equivale

07:18
Origins Of Algebra  Introduction To Algebra  Algebra I  Khan Academy
314 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

02:23
This SAT Math Question Has A Mistake
258 views / 0 likes  addedThis question appeared on the October 1980 SAT exam. Like all questions, it was supposed to have exactly one correct answer. However the testmakers made a mistake. Can you figure out what they did wrong? Blog post (text explanation): http://wp.me/p6aMk4

08:34
LCM And GCF Word Problems  Factors And Multiples  PreAlgebra  Khan Academy
324 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

01:47
Decompose Hundredths On Number Line  Fractions  4th Grade  Khan Academy
519 views / 0 likes  addedLearn how to decompose a fraction with hundredths on a number line. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thfractionstopic/cc4thfractionsunlikedenom/e/decomposefraction

03:27
How To Use The Distributive Property To Factor Out The Greatest Common Factor  Khan Academy
250 views / 0 likes  addedLearn how to apply the distributive property to factor numerical expressions (no variables). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccsixthgrademath/cc6thexpressionsandvariables/cc6thdistribut

09:50
Adding And Subtracting Fractions  Fractions  PreAlgebra  Khan Academy
406 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

04:51
Cube Root Of A Nonperfect Cube  PreAlgebra  Khan Academy
304 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

05:51
Equivalent Fractions  Fractions  PreAlgebra  Khan Academy
314 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

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

06:29
Multiplying Decimals: Place Value And Reordering  Decimals  PreAlgebra  Khan Academy
330 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
304 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
321 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

01:11
Subtracting Decimals: Example 1  Decimals  PreAlgebra  Khan Academy
271 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
333 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

14:13
Introduction To Ratios  Ratios, Proportions, Units, And Rates  PreAlgebra  Khan Academy
367 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

09:45
Simplifying Radicals  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
335 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

09:15
Mixed Numbers And Improper Fractions  Fractions  PreAlgebra  Khan Academy
327 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

07:14
Negative Exponents  Exponents, Radicals, And Scientific Notation  PreAlgebra  Khan Academy
324 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

09:29
Dividing Decimals With Hundredths Example 3  Decimals  PreAlgebra  Khan Academy
295 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
289 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
322 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
329 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
254 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

02:36
Converting Decimals To Percents  Decimals  PreAlgebra  Khan Academy
264 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

02:32
Dividing Whole Numbers And Fractions: Potpourri  Fractions  PreAlgebra  Khan Academy
308 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

04:24
Example Of Subtracting Fractions With Unlike Denominators  Fractions  PreAlgebra  Khan Academy
304 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

03:29
Comparing Decimals Example 1  Decimals  4th Grade  Khan Academy
282 views / 1 likes  addedLearn how to compare decimals with tenths and hundredths. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thdecimals/cc4thcomparedecimals/e/comparing_decimals_1?utm_source=YT&utm_me

02:32
Comparing Fractions Visually With Pies  Fractions  4th Grade  Khan Academy
291 views / 0 likes  addedComparing fractions visually with pies Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thfractionstopic/cc4thcomparingfractionsvisually/e/visuallycomparingfractions?utm_source=Y

05:38
Decimals As Words  Decimals  4th Grade  Khan Academy
260 views / 0 likes  addedLearn how to describe decimals in words. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thdecimals/cc4thdecimalsintro/e/decimalsinwords?utm_source=YT&utm_medium=Desc&utm_campaign

02:55
Comparing Fractions On A Number Line  Fractions  4th Grade  Khan Academy
337 views / 0 likes  addedComparing fractions on a number line Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thfractionstopic/cc4thcomparingfractionsvisually/e/visuallycomparingfractions?utm_source=YT&

09:58
Math Antics  Basic Division
598 views / 0 likes  addedLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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02:35
Comparing Fractions Visually With A Bar  Fractions  4th Grade  Khan Academy
258 views / 0 likes  addedLearn how to compare fractions with unlike denominators by drawing bars Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thfractionstopic/cc4thcomparingfractionsvisually/e/visually

06:06
Equivalent Fractions And Different Wholes  Fractions  4th Grade  Khan Academy
324 views / 0 likes  addedLearn how two fractions are equivalent only if they refer to the same whole. For example, 1/2 of a small circle is not the same as 1/2 of a big circle. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourth

04:11
Decomposing Hundredths Into Tenths And Hundredths  4th Grade  Khan Academy
286 views / 0 likes  addedLearn how to decompose a fraction into tenths and hundredths. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ccfourthgrademath/cc4thfractionstopic/cc4thfractionsunlikedenom/e/decomposefractionswith

11:28
Math Antics  Basic Probability
56 views / 0 likes  addedThis is a reupload to correct some terminology.In the previous version we suggested that the terms odds and probability could be used interchangeably. While this may be okay in casual conversation (since both have to do with the likelihood of an event),

13:24
Basic Linear Functions  Math Antics
375 views / 0 likes  addedLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

09:36
Negative Numbers Introduction  Negative Numbers And Absolute Value  PreAlgebra  Khan Academy
269 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.
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