In this real-world context, 6th graders are given the ratio of Jim's money to Jesse's and the amounts they have spent so far on a road trip, and they must calculate what each person had at the start of the trip. Aligns with 6.RP.A.3.

The purpose of this task is to give middle schoolers an opportunity to solve a multi-step ratio problem that can be approached in many ways. The site includes a task and the solution.

Using a tape diagram is one of the key models for ratios and proportions.

Print or create worksheets or flashcards to assess students' understanding of ratio concepts.

Find out how to calculate the Golden Ratio in this exercise.

The purpose of this task is to give students an opportunity to solve a multi-step percentage problem that can be approached in many ways. Because the tax and tip in this problem are a fixed percentage of the cost of the meal, the total...

In this task where two saltwater solutions are compared, 8th graders must find equivalent ratios, write an equation that works for both solutions, draw the equation's graph, and interpret the slope as a unit rate. Aligns with 8.EE.B.5.

Using the USA TODAY Infograph, 'Wing tabs save fuel', ratios and proportions will be used to explore the concept of similarity between a drawing/model and the actual dimensions. The effects of dilation (size change) on an image and...

Demonstrate the ability to apply the use of decimals, fractions, ratios and proportions to situations based upon given information about planets in the solar system.

Download and print these worksheets to sharpen your skills working with fractions. Worksheets focus on modeling fractions, ratios and proportions, comparing, ordering, simplifying, converting, and order of operations.

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.

This is a personal site from Jim Loy that describes the golden rectangle and the golden ratio. Includes several diagrams and pictures as well as formulas. A good background in math is helpful.

[Free Registration/Login may be required to access all resource tools.] Understand direct and inverse variation.

Students learn about the concept of percent change by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.

In this activity, students investigate slope and how it can be explained as a ratio of change between the vertical and horizontal coordinates.

[Free Registration/Login Required] In this flipchart, students apply ratio, percent, and direct proportion in situations. Students solve problems involving percentages such as percent increase/decrease, tax, commission, and discount.

[Free Registration/Login may be required to access all resource tools.] Convert ratios to rates and then compare the rates.

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.

Solving proportions by finding the missing part and advance your dirt bike to the finish line.

An interactive simulation that teaches about ratios, proportional reasoning, and using double number lines to look for patterns through interactions while shopping for fruits, vegetables, and candy and by comparing cars with different...

Students demonstrate understanding of proportional relationships when completing an assessment.

Amazing site examines size from the most elementary particle to the extremities of space, and everything in between. This interactive feature will encourage you to look differently at your size in relation to the rest of the universe.

Seventh graders will explore scale and use it to find measurements in scale drawings.