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 | | time | views | |
 | Deriving formula for sum of finite geometric series | 7:15 | 4,668 | |
 | Finding sum from recursive definition of sequence | 5:21 | 2,596 | |
 | Evaluating arithmetic sum example | 6:47 | 1,718 | |
 | Evaluating finite arithmetic series | 7:20 | 1,732 | |
 | Informal argument for the area of circle formula | 9:26 | 2,867 | |
 | Finding radius and diameter from circumference | 3:36 | 2,509 | |
 | Tangents of circles exercise examples | 4:37 | 3,404 | |
 | Segments tangent to circle from outside point congruent | 3:56 | 2,775 | |
 | Hypotenuse leg congruence | 3:10 | 1,371 | |
 | Proving radius is perpendicular to tangent line | 8:41 | 2,361 | |
 | Noble gas configuration | Electronic structure of atoms | Chemistry | Khan Academy | 6:47 | 8,170 | |
 | Proving the opposite angles of inscribed quadrilateral are supplementary | 3:56 | 3,025 | |
 | Example showing supplementary oppositie angles in inscribed quadrilateral | 4:58 | 2,188 | |
 | Finding inscribed angle measure | 2:10 | 3,213 | |
 | Solving for unknown angle | 5:49 | 3,026 | |
 | Ideal circuit elements and sources | 9:37 | 11,208 | |
 | Arc measure with equations examples | 6:58 | 3,935 | |
 | Arc measure example problems | 6:36 | 3,482 | |
 | Arc measure | 5:27 | 4,097 | |
 | Inscribed angles exercise example | 1:20 | 2,912 | |
 | Seeing circle similarity through translation and dilation | 1:35 | 3,635 | |
 | Analyzing a resistor circuit with two batteries | 9:44 | 10,690 | |
 | Sal Khan on how you can support Khan Academy | 0:49 | 19,438 | |
 | Combining like terms with distribution | 2:19 | 13,431 | |
 | Michelson Morley Experiment introduction | 8:12 | 6,210 | |
 | Potential ways to detect an ether wind | 7:24 | 6,532 | |
 | Rutherford’s gold foil experiment | 11:24 | 9,662 | |
 | Light and the luminiferous ether | 7:58 | 5,561 | |
 | Cell signaling in yeast reproduction | 8:20 | 4,721 | |
 | Example of signal transduction pathway | 6:35 | 6,761 | |
 | Introduction to nouns and verbs | 5:13 | 10,775 | |
 | Overview of cell signaling | 8:49 | 13,638 | |
 | Walk through of STEM content on KA | 8:12 | 9,858 | |
 | Faraday's Law for generating electricity | 5:38 | 15,098 | |
 | Emf induced in rod traveling through magnetic field | 8:20 | 9,668 | |
 | Faraday's Law example | 9:30 | 15,293 | |
 | Lenz's Law | 5:46 | 28,638 | |
 | Faraday's Law Introduction | 5:37 | 25,752 | |
 | Flux and magnetic flux | 10:30 | 25,762 | |
 | Plans for biology | 3:10 | 6,420 | |
 | Solving for constants in perfect square polynomial | 2:39 | 6,098 | |
 | Shared binomial factor between perfect square and difference of squares | 4:26 | 3,852 | |
 | Factoring perfect square polynomial | 3:39 | 8,826 | |
 | Identifying perfect square trinomials | 4:37 | 3,653 | |
 | Finding a shared binomial factor | 4:23 | 7,554 | |
 | Equivalent expressions to differences of squares | 3:90 | 4,531 | |
 | Factoring difference of squares exercise example | 5:50 | 4,542 | |
 | Emancipation Proclamation | 10:11 | 6,846 | |
 | Early phases of Civil War and Antietam | 10:17 | 4,920 | |
 | Factoring polynomial to find rectangle dimensions | 5:27 | 5,412 | |
 | Factoring simple quadratic expression | 6:34 | 17,242 | |
 | Strategy of the Civil War | 11:30 | 10,769 | |
 | Start of the Civil War | 10:44 | 10,596 | |
 | Factoring as product of binomials | 1:42 | 7,600 | |
 | Ways to factor a monomial | 2:60 | 6,012 | |
 | Algebraic factoring by greatest common monomial factor | 4:58 | 10,380 | |
 | Finding algebraic factor of a monomial | 3:19 | 4,839 | |
 | Dimensions of rectangle for algebraically described area | 2:90 | 3,743 | |
 | Factors and divisibility in algebra | 5:26 | 10,462 | |
 | Multiplying binomials to get difference of squares | 4:54 | 4,573 | |
 | Pattern for squaring simple binomials | 5:43 | 25,439 | |
 | Multiplying simple binomials | 4:47 | 14,976 | |
 | Breakthrough Junior Challenge - Sal and Priscilla | 1:29 | 9,341 | 1 list |
 | Missing number for addition and subtraction within 1000 | 3th grade | Khan Academy | 3:53 | 27,928 | |
 | Multiplying binomials with distributive property | 2:36 | 1,838 | |
 | Multiplying polynomials using area model | 6:30 | 3,460 | |
 | Multiplying binomials to solve for coefficients | 4:43 | 3,023 | |
 | Area model for multiplying binomials | 3:55 | 3,798 | |
 | Product of a monomial and polynomial | 4:18 | 3,775 | |
 | Area of rectangle as a polynomial | 1:34 | 3,640 | |
 | Multiplying monomials by monomials | 3:32 | 4,643 | |
 | Subtracting polynomials in two variables | 3:44 | 3,514 | |
 | Amy Jarich Interview | 10:20 | 2,316 | |
 | Subtracting polynomials and set closure | 5:54 | 6,501 | |
 | Worked example of error when subtracting polynomials | 2:27 | 4,151 | |
 | Beginning of the Civil War | 9:23 | 6,899 | |
 | Mathematical closure | 5:10 | 2,794 | |
 | Breakthrough Junior Challenge | 2:14 | 10,032 | 1 list |
 | Banana proportionality | Rated and proportional relationships | 7th grade | Khan Academy | 2:57 | 8,954 | |
 | Movie ticket proportionality | 7th grade | Khan Academy | 1:46 | 9,065 | |
 | Testing whether area is proportional to side length | 7th grade | Khan Academy | 3:46 | 9,502 | |
 | Proportionality between side length and perimeter | 7th grade | Khan Academy | 2:39 | 10,945 | |
 | Increasing political battles over slavery in mid 1800s | 11:47 | 6,763 | |
 | Slavery and Missouri Compromise in early 1800s | 11:10 | 7,905 | |
 | Intuition for area with fractional side lengths | 7:20 | 2,448 | |
 | Coordinates for triangle example | 1:40 | 1,117 | |
 | Example finding area with fractional sides | 3:47 | 1,089 | |
 | Visually understanding multiplying fractions and whole numbers | 6:37 | 2,443 | |
 | Multiplying fractions by whole numbers on the number line | 1:51 | 9,793 | |
 | Adding mixed numbers with regrouping | 5:80 | 9,482 | |
 | Subtracting mixed numbers with regrouping | 3:51 | 8,901 | |
 | Visually subtracting fractions with unlike denominators | 3:46 | 23,814 | |
 | Visually adding fractions with unlike denominators | 5:40 | 49,778 | |
 | Solving for the missing fraction | 5:40 | 15,662 | |
 | Adding and subtracting multiple fractions with unlike denominators | 5:23 | 12,797 | |
 | Subtracting fractions with unlike denominators | 5:10 | 37,763 | |
 | Adding fractions with unlike denominators | 7:24 | 66,045 | |
 | Area of parallelogram on coordinate plane | 2:80 | 11,991 | |
 | Finding coordinates of missing vertex example | 2:41 | 4,509 | |
 | Dimensions of rectangle from coordinates example | 3:51 | 4,248 | |
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