Sophia Learning
Sophia: Solving a Proportion With an Unknown: Lesson 10
This lesson demonstrates how to solve a proportion when a variable is present. It is 10 of 13 in the series titled "Solving a Proportion with an Unknown."
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 a Proportion With an Unknown: Lesson 8
This lesson demonstrates how to solve a proportion when a variable is present. It is 8 of 13 in the series titled "Solving a Proportion with an Unknown."
Sophia Learning
Sophia: Writing a Ratio From a Sentence: Lesson 1
In this lesson, students are shown that given a sentence describing a ratio, it is possible to write the ratio in mathematical form. It is 1 of 11 in the series titled "Writing a Ratio from a Sentence."
Khan Academy
Khan Academy: Ratio Word Problem: Centimeters to Kilometers
Demonstrates how to use ratios to solve a map scale problem. [1:12]
Shmoop University
Shmoop: Ratios and Percents
This humerous video explains ratio and percentages by using an animationed character called Milton and the embarrassing situations he has encountered.
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]
PBS
Pbs Learning Media: Fantasy Baseball
Explore the game of baseball, then use what you've learned to use decimals and ratios to analyze key statistical data, draft players and make trades, based on an analysis of the data.
Study Pug
Study Pug: Applications of Linear Relationships
Linear relationships can help us illustrate real-life relationships such as breakeven points, cost of goods sold to profits, sales to profit, and many more. This video walks you through word problems on linear relationships. [0:41]