Khan Academy
Khan Academy: Algebra: Dividing Polynomials 1
Video demonstrates how to divide a trinomial by a binomial. [3:20]
Khan Academy
Khan Academy: Geometry: Measuring Angles in Degrees
Explains how to measure an angle in degrees using a protractor. Defines acute, right, and obtuse angles. Practice problems available. [8:22]
Khan Academy
Khan Academy: Algebra: Linear Equations 4
This video demonstrates how to solve linear equations in which the variable "x" is in the denominator. There are three different sample problems presented. Practice problems available. [7:39]
Khan Academy
Khan Academy: Algebra: Graphing Exponential Functions
Video showing how to graph an exponential function by evaluating the function for chosen values of x and plotting the resulting points. [5:32]
Khan Academy
Khan Academy: Geometry: Figuring Out All Angles for Congruent Triangles Example
Explains how to use given triangle congruency statements to determine the unknown measures of all angles in a diagram where one large triangle is divided into three congruent triangles. [4:35]
Khan Academy
Khan Academy: Algebra: Adding and Subtracting Polynomials 1
Demonstrates how to add polynomials. Each polynomial is a trinomial. Practice problems available. [2:01]
Khan Academy
Khan Academy: Algebra: Variables and Expressions 1
This video demonstrates how to solve a word problem using an expression and substituting values for a variable. [2:00]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Basic Subtraction
This video covers a short review of addition, followed by basic subtraction concepts. Practice problems are available. [8:32]
Khan Academy
Khan Academy: Algebra: Exponent Properties Involving Quotients
Video explains and uses the quotient of powers rule as well as working with algebraic expressions with negative exponents. Video is also included in the Algebra: ck12.org strand. [9:22]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Decimal Place Value 2
This video shows how to write a decimal in word form, using place value concepts. Practice problems are available. [3:31]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Basic Addition
This video introduces basic addition concepts using objects and number lines to represent and add numbers. Practice problems are available. [7:42]
Khan Academy
Khan Academy: Algebra: Linear Equations 1
A video that demonstrates how to solve linear equations of the form Ax=B. There are three examples that vary using whole numbers and positive and negative fractions. [7:28]
Khan Academy
Khan Academy: Algebra: Special Products of Binomials
Video explains how to find special binomial products. Four examples are worked that show how to square a binomial. Three examples are worked that show the product of a sum and a difference (a +b)(a - b). This video also appears in the...
Khan Academy
Khan Academy: Algebra: Factoring Special Products
Demonstrates how to solve quadratic equations by factoring. Four equations are solved some involving special products including perfect square trinomials and difference of squares. This video also appears in the Algebra: ck12.org strand....
Khan Academy
Khan Academy: Algebra: Solving Systems by Graphing 2
This video demonstrates how to use a graph in order to determine the number of solutions for a system of linear equations. [3:26]
Khan Academy
Khan Academy: Algebra: Square Roots and Real Numbers
This resource explains how to find the square root of real numbers using their prime factorizations and labeling the results as rational or irrational. [10:19]