National Education Association
Identifying Variables: Independent and Dependent
Why did the variable add its opposite? To get to the other side. A video introduces the concept of variables. It compares and contrasts independent and dependent variables in a variety of problems.
National Education Association
Solve Linear Formulas and Literal Equations for a Specified Variable
Mathematics is not a spectator sport. A video explains how to identify literal equations and why pupils will need to use them. It goes on to describe how to solve for a specified variable.
Mathispower4u
Convert Celsius to Fahrenheit
If you're looking for a resource on temperature, you're getting warmer. By watching a short video, learners see how to convert a Celsius temperature to a Fahrenheit temperature. The resource also shows how to solve the conversion formula...
Krista King Math
Abstract Fractional Equations
Viewers of this short video examine abstract equations with fractional expressions and learn to find a least common multiple to eliminate denominators. They then see how to manipulate the equation to isolate the variable of interest.
Sophia Learning
Sophia: Solving a System of Linear Inequalites by Graphing: Lesson 2
This lesson will demonstrate how to solve a system of linear inequalities by graphing. It is 2 of 4 in the series titled "Solving a System of Linear Inequalites by Graphing."
Khan Academy
Khan Academy: Algebra: Ca Algebra 1: Systems of Inequalities
This video demonstrates how to solve several test questions related to systems of equations and systems of inequalities. [12:56]
Khan Academy
Khan Academy: Algebra: Linear Equations: Age Word Problems 1
This video demonstrates how to solve word problems related to a person's age by setting up and solving equations based on the information given in the problem. There are two sample word problems. [7:14]
Khan Academy
Khan Academy: Algebra: Linear Equations: Age Word Problems 3
This video begins by finishing the final problem in the "Age Word Problems 2" video. Then it continues to demonstrate how to solve word problems related to a person's age by setting up and solving equations based on the information given...
Khan Academy
Khan Academy: Algebra: System of Inequalities Application
This video demonstrates how to solve a word problem by setting and solving a system of linear inequalities. [8:09]
Khan Academy
Khan Academy: Algebra: Equations and Inequalities
Video demonstrating how to write and solve equations and inequalities from real-world situations. Also included are examples of testing solutions to inequalities. This video is also found in the strand Algebra: ck12.org. [16:11]
Khan Academy
Khan Academy: Algebra: Ca Algebra I: Graphing Inequalities
This video demonstrates how to solve several test questions related to linear equations and linear inequalities. It demonstrates solving equations, graphing linear inequalities in two variables, and graphing linear equations. [11:42]
Khan Academy
Khan Academy: Algebra: Age Word Problems 2
This video demonstrates how to solve word problems related to a person's age by setting up and solving equations based on the information given in the problem. There are two sample word problems. [9:57]
Khan Academy
Khan Academy: Algebra: One Step Inequalities
Video demonstrating how to solve and graph a one-step inequality. Practice problems available. [1:54]
Khan Academy
Khan Academy: Algebra: Graphing Inequalities 2
This video demonstrates how to graph an inequality with two variables and check your graph by substituting ordered pairs back into the inequality. Practice problems available. [5:20]
Khan Academy
Khan Academy: Algebra: Inequalities Using Multiplication and Division
Video demonstrates through several examples how to solve inequalities using multiplication and division of positive and negative numbers. Practice problems available. This video is also found in the strand Algebra: ck12.org. [10:27]
Khan Academy
Khan Academy: Algebra: Inequalities Using Addition and Subtraction
Video shows how to solve and graph inequalities using subtraction or addition. Practice problems available. This video is also found in the strand Algebra: ck12.org. [7:48]
Khan Academy
Khan Academy: Algebra: Graphing a System of Inequalities
This video demonstrates how to set up a system of linear inequalities and solve it by graphing. [9:45]
Khan Academy
Khan Academy: Algebra: One Step Inequalities 2
Video demonstrating how to solve and graph a one-step inequality including how to reverse the inequality. [2:54]
Khan Academy
Khan Academy: Algebra: Inequalities on a Number Line
A step-by-step video demonstrating how to graph inequalities on a number line. Practice problems available. [1:34]
Khan Academy
Khan Academy: Algebra: Inequalities
Video demonstrating how to solve a real-world inequality problem. [2:09]
Khan Academy
Khan Academy: Algebra: Interpreting Inequalities
A step-by-step video demonstrating how to solve an algebraic word problem through interpreting inequalities. [6:39]
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: 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: 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]