Khan Academy
Khan Academy: Algebra: Factor by Grouping and Factoring Completely
Video explains how to use the factor by grouping method to factor trinomials completely. Three different examples of trinomials with leading coefficients other than 1 are solved. One example involves first factoring out a greatest common...
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Decimal Place Value
This video explains place value in decimal numbers. Practice problems are available. [4:00]
Khan Academy
Khan Academy: Pre Calculus: Binomial Theorem (Part 3)
The last video in a three-part series on the Binomial Theorem from the Khan Academy. This segment illustrates how the Binomial Theorem is directly related to combinatorics using (a + b)^3 as an example. Students can clearly see how a...
Khan Academy
Khan Academy: Algebra: Square a Binomial
Video demonstrates how to find the square of a binomial as a special case of multiplying binomials. [3:38]
Khan Academy
Khan Academy: Linear Algebra: Surjective(onto), Injective(one to One) Functions
Video explains what a surjective or onto function is and also what an injective or one-to-one function is. Gives examples and non-examples of surjective and injective functions. [9:31]
Khan Academy
Khan Academy: Algebra: Equation of a Line 3
This video demonstrates how to write a linear equation in slope-intercept form when given two points on the line. Practice problems available. [6:42]
Khan Academy
Khan Academy: Algebra: Equations With Variables on Both Sides
A video that demonstrates how to solve equations with variables on both sides. The first two examples give the equation and the third example is a word problem in which an equation must be written and then solved. This video is also...
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Inverse Property of Multiplication
This video shows the inverse property of multiplication and its relation to division. Practice problems are available. [3:16]
Khan Academy
Khan Academy: Algebra: Multi Step Inequalities 2
Video demonstrating how to solve and graph multi-step inequalities. [3:47]
Khan Academy
Khan Academy: Algebra: Factoring Special Products 1
Video demonstrates how to notice and factor a perfect square trinomial. [3:52]
Khan Academy
Khan Academy: Differential Equations: Separable Differential Equations 2
Video shows an example of solving a separable differential equation. [5:37]
Khan Academy
Khan Academy: Algebra: Quadratic Equation Part 2
Explains how to use the quadratic formula to find the solutions to a quadratic equation. Two different examples are solved. [9:14]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Converting Fractions to Decimals
This video shows how to convert from a fraction to a decimal. Practice problems are available. [2:17]
Khan Academy
Khan Academy: Algebra: Solving Inequalities
Video giving step-by-step instructions on how to solve inequalities. Example problem includes reversing the inequality when dividing by a negative number. [4:32]
Khan Academy
Khan Academy: Algebra: Absolute Value Inequalities Example 3
Video solves an absolute value inequality that has no solution. This video also appears in the strand Algebra: Absolute Value. [2:35]
Khan Academy
Khan Academy: Algebra: Absolute Inequalities Example 3
A step-by-step explanation of an absolute value inequality that has no solution. [2:35]
Khan Academy
Khan Academy: Algebra: Graphing Linear Inequalities in Two Variables 3
This video demonstrates how to write a two variable inequality given the graph of the inequality on a coordinate plane. Practice problems available. [3:20]
Khan Academy
Khan Academy: Algebra: Graphing Systems of Inequalities 2
This video demonstrates how to find the solution set for a system of three linear inequalities. [3:24]
Khan Academy
Khan Academy: Linear Algebra: More on Matrix Addition and Scalar Multiplication
Video reviews what was shown in the previous video that the sum of two linear transformations is the sum of their transformation matrices and the scalar multiple of a transformation is the scalar multiple of the transformation matrix....
Khan Academy
Khan Academy: Algebra: Solving Systems by Elimination
This video demonstrates how to set up and solve a system of equations in order to solve a word problem. The system is solved using the elimination method. [5:51]
Khan Academy
Khan Academy: Algebra: Exponent Properties Involving Products
Video lesson that first reviews what an exponent is, then introduces and explains different rules of exponents and uses them to simplify algebraic expressions. Includes an explanation of zero exponents. Video is also included in the...
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Finding Unit Rates
This video shows how to find a unit rate in the context of a word problem. Practice problems are available. [2:31]
Khan Academy
Khan Academy: Algebra: Multiplying Binomials
Video demonstrates how to multiply binomials by using the distributive property and using the mnemonic FOIL. Practice problems available. [5:47]
Khan Academy
Khan Academy: Algebra: Direct Variation Application
This video demonstrates how to solve a word problem involving a direct variation. It shows how to set up a linear equation for a directly proportional relationship and solve for the constant of proportionality. [2:02]