Practice writing equations to describe proportional relationships. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this video, Harry finds money on the sidewalk. He uses ratio, proportion, and some knowledge about shadows to return it to the rightful owner. In the accompanying classroom activity, students investigate whether there is a consistent...

Practice setting up and solving proportions to solve word problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice solving basic proportions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice writing proportions to describe real-world situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This example provides a clear explanation of how to compare figures to see if they are similar and the formula to determine if the ratios are equal. Interactive practice activities are provided.

Using this infographic, learn how wage equity today compares with data from 50 years ago, at the dawn of the equal pay movement. The accompanying classroom activity invites students to explore the change in the gender wage gap from 1965...

This short exercise gives the student a ratio in reduced terms, and then gives the students a replacement value for one part of the ratio. The student is then to input the other part of the replacement ratio so as to keep the two ratios...

In this lesson plan, the students will learn what a ratio is and how it can be used in a comparison. In this lesson plan, students will also determine how to combine a sports drink in powder form and water to make enough for a whole...

Find the number which makes the fractions equal in this multiplayer race!

"Rated 'M' for middle school," Math TV invites you to tune in each week for videos of word problems being solved. Back episodes are available in subjects such as percentages, number sense, and fractions. Watch a problem worked out, then...

This interactive website allows students to practice their map skills including scale factors on a map.

This page explores how ratios can be written as fractions. The site also discusses proportions and reducing ratios with problems and examples.

Bianca visits a bike shop and learns how bicycle gears work in this Cyberchase video segment. [3:26]

In this video segment from TV 411, two Atlanta Hawks players plan a driving route to reach the Basketball Hall of Fame. They use map scales to estimate their travel distances.

Practice computing rates associated with ratios of fractions or decimals. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this video, life-size replicas help demonstrate one-dimensional scaling and the ratio relationship between two real-world quantities. The accompanying classroom activity helps students understand how ratios and proportions can help...

Word problems allow you to see the real world uses of math! This tutorial shows you how to take a rate and convert it to a unit rate. Then, you can use that unit rate to calculate your answer. Watch this tutorial to learn all about it!

This video features the Louisville Slugger Museum and Factory, home to the world's largest bat. Students see the role that measurement and engineering play in making bats to professional players' specifications and are asked to consider...

This math game will help students understand the connection between fractions and decimals. Students will use dice, a recording sheet, and their number sense as they find equivalent fractions from decimals. During the other part of the...

This resource presents an interesting challenge for the serious mathematician with strong reasoning skills. Explore proportional reasoning, probabilities, fractions, and ratios in this challenge to figure out if you always get six hours...

In this video segment from Cyberchase, the CyberSquad and Digit construct a physical profile of the person who kidnapped Choocroca, a giant cybercrocodile. [2:49]

Angel and Jayden were at track practice. The track is $\frac25$ kilometers around. Aligns with 7.RP.A.

This video explores scale models, including 1:12 dollhouse models, 1:24 railroad models, and 1:192 architectural models. It explains what the different ratios represent and asks students to consider how they can use measurement and...