Sophia Learning
Sophia: Solving Algebraic Problems Using Fractions and Decimals
Solve algebraic problems arising from situations that involve fractions, decimals, and proportionality/direct variation. This lesson is 1 of 2 in the series titled "Solving Algebraic Problems using Fractions, Decimals, and Proportionality."
Sophia Learning
Sophia: Solving Algebraic Proportions in 1 Variable: Lesson 1
Solve algebraic proportions in one variable which result in linear or quadratic equations. This lesson is 1 of 3 in the series titled "Solving Algebraic Proportions in 1 Variable."
Sophia Learning
Sophia: Using Equations to Describe Proportions
This lesson explains how proportional relationships can be described using equations.
Sophia Learning
Sophia: Solving Algebraic Proportions in 1 Variable: Lesson 2
Solve algebraic proportions in one variable which result in linear or quadratic equations. This lesson is 2 of 3 in the series titled "Solving Algebraic Proportions in 1 Variable."
Sophia Learning
Sophia: Solving a Proportion With an Unknown: Lesson 3
This lesson demonstrates how to solve a proportion when a variable is present. It is 3 of 13 in the series titled "Solving a Proportion with an Unknown."
Sophia Learning
Sophia: Solving More Difficult Proportions With an Unknown #5
This lesson will present how to solve for unknown variables in more difficult proportion problems.
Sophia Learning
Sophia: Using Equations to Describe Proportions
This lesson explains how proportional relationships can be described using equations.
Other
Mash Up Math: What Is an Equivalent Ratio?
A video demonstrating how to determine if two ratios are equivalent and how to use ratio and rate reasoning to solve real-world and mathematical problems. [4:51]
Other
Mario's Math Tutoring: Solving Proportions
Find out what a proportion is and learn different ways to solve proportion problems in this free math video tutorial. [2:15]