Employ proportional reasoning and algebraic understanding to a determine a real world math quandary. Intel has created a project based unit to engage learners in using algebra to describe the physical world. They will create equations,...

Sixth graders investigate unit pricing to find which cup of coffee is a better buy. They use ratio and proportions to solve problems involving a change of scale in drawings, maps, recipes, etc. Students determine the unit cost of items...

Tenth graders practice solving proportions from similar triangles. They watch a PowerPoint presentation and complete a worksheet each of two days of this lesson. Links for worksheets and PowerPoint presentations are included with this...

Students use ratios and proportions to represent quantitative relationships as they investigate the concept of how percentages are used by designers. Students decorate the same room using three different percentages of colors.

In this shadow sleuth worksheet, students use proportions and indirect measurement to determine the measurement of given objects. This one-page worksheet contains three problems.

Young ratio masters calculate and cut a frame (out of poster board) to accurately create an even frame around a picture of themselves. The frame needs to be proportional to the picture with constraints determined by the instructor. 

Seventh graders explore how proportion controls the image of a drawing. They examine a coordinate plane and discuss plotting. Student experiment drawing an object one size, and then drawing an identical object on a different scale.

Middle schoolers calculate gear ratio as they solve word problems. They discuss and find slopes as they relate to real life. Additionally, they hey use ratio and proportion to make predictions and solve problems.

Use the power of mathematics to find the number of red chips in a bag — it's a little like magic! The activity asks learners to collect data to determine the percentage of red chips in a bag. They calculate the margin of error and...

Converting units is an excellent example of how math relates to our everyday tasks. The resource prompts mathematicians to use baking, cooking, and other daily activities to discover how to make larger quantities of...

During a walk-a-thon your learners must determine the walking rate of Julianna's progress. Using tables, graphs, and an equation, they must be able to calculate the time it took her to walk one mile and predict her distance based on the...

Tie the unit together and see concepts click in your young mathematicians' minds. Scholars apply the properties of similar triangles to find heights of objects. They concentrate on the proportions built with known measures and solve to...

It's a small world after all. In the middle school assessment task, learners use data that imagines there are only 100 people in the world to answer questions about population demographics. Young mathematicians use ratio and proportional...

Teach the basics of measurement and conversion with a five-lesson resource that builds an understanding of proportion and measurement conversion from elementary through high school. Initially, young scholars use ratios to determine soup...

Bear with your classes as they explore unit rate and proportions using gummies! Gummy bears come in many different sizes, including a 2,250-gram super bear! The task asks learners to determine how many regular bears and how many mini...

Ever wondered how many pieces of paper a binder clip can hold? Viewers of a short video are about to find out! Given measurement data for three different sized binder clips, learners must develop a method for figuring out how many pieces...

Bring the resource out from the shadows. Viewers of a short video learn about drive-in theaters and how operators project images onto a large screen. They then perform an experiment to determine the relationship between the distance of...

In this proportions worksheet, 8th graders solve and complete 10 different problems that include difficult word based proportions. First, they solve each proportion as described. Then, students write their answer on the line provided for...

In this equivalent proportion worksheet, students identify ratios written in three different forms (with a colon, with the word "to" and as a fraction). Students write the ratios as a proportion and then determine their equivalency. ...

In this missing proportion worksheet, students solve for a missing variable to create a true statement. The two-step process of cross-multiplication and division may be used to solve given ratios. This one-page worksheet contains ten...

In this math worksheet, students solve the problems for equations, formulas, and proportions. The equations are written using Algebra blocks.

In this Algebra I worksheet, 9th graders solve a crossword puzzle that is based on the vocabulary associated with ratio and proportion.  The one page interactive worksheet contains fourteen clues and is self checking. 

What is ratio? What is proportion? Two examples are shown before your pupils are given seven problems using either ratio or proportion. Consider having your learners illustrate a selection of the problems provided. 

You class will read Cucumber Soup by Vickie Leigh Krudwig as an anticipatory set for this lesson on ratios. They make models of the insects in the story and then use them as a source of data for this ratio and proportion lesson. This...