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Worksheet
Curated OER

Effects of Changing Dimensions Proportionally

For Students 9th - 10th
In this geometry instructional activity, learners describe the effect of a proportional change on the perimeter or circumference and area of the given circles or quadrilaterals.  The one page instructional activity contains ten...
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Lesson Plan
Curated OER

Hybrid Vehicles: Cut Pollution and Save Money

For Teachers 7th - 8th
Math and science meet in this lesson on hybrid electric automobiles. This 24-page resource provides everything you need for teaching a lesson that compares the use of internal combustion engines to hybrid electric engines. Participants...
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Worksheet
Curated OER

Baseball Proportion: Student Worksheet

For Students 4th - 6th
Here is a simple and clever activity which illustrates the concept of mathematical proportion and size quite effectively. In it, two pupils hold baseball bats: one is a regulation-size bat, the other is a miniature souvenir bat. The...
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Worksheet
Curated OER

Proportional Reasoning: Ratio Applications

For Students 8th
In this ratio applications worksheet, 8th graders solve and complete 24 various types of problems that include proportional reasoning. First, they solve each pair of similar figures for the given variable. Then, students write and solve...
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Worksheet
Curated OER

Ratio and Proportion

For Students 9th - 11th
In this ratio and proportion worksheet, students read problems and solve proportion problems. They determine the best buy and identify the ratio of different sized polygons. This four-page worksheet contains 7 multi-step problems....
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Worksheet
Curated OER

Rates and Ratios

For Students 7th - 9th
In this rates and ratio instructional activity, students determine the ratio for a given situation. They use proportions to solve problems. This two-page instructional activity contains 4 multi-step problems. Answers are provided on the...
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Lesson Plan
Curated OER

Solving Problems and Proportions

For Teachers 7th - 10th
In this proportion worksheet, learners read story problems, identify the ratios, set them equal to each other, and solve the proportion. There are 11 story problems in this two-page worksheet.
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Worksheet
Curated OER

Rates and Ratios 3

For Students 7th - 9th
In this rates and ratios instructional activity, students write proportions to match the given problem. They determine unit rates for a given situation. This two-page instructional activity contains 4 problems. Answers are provided on...
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Lesson Plan
Curated OER

Word Problems Dealing with Ratio and Proportion

For Teachers 6th - 8th
Mindful middle-schoolers read and solve a number of word problems. Learners copy and discuss what they believe their strategies are in solving each problem. They also write their findings and share with the rest of the class.
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Lesson Plan
Virginia Department of Education

Similar Solids and Proportional Reasoning

For Teachers 9th - 11th
Double the dimensions, quadruple the surface area. Pairs build similar prisms and compare the ratios of their surface areas and volumes to the ratio of the heights. Given two similar cones, partners determine the ratios of the lateral...
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Lesson Plan
EduGAINs

Ratio and Proportion

For Teachers 7th - 10th Standards
Do these items have the same ratio? Through a learning contract, pupils master proportions by practicing proportions via word problems, graphs, and with manipulatives. An exit ticket checks for understanding at the end of the...
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Lesson Plan
Illustrative Mathematics

Art Class, Assessment Variation

For Teachers 7th - 9th Standards
Play with paint and decide the ratio to make different shades of green. When mixing paint colors, your painters should decide which ratios make the same shade and what is needed to mix other ratios for a different shade of green. This is...
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Lesson Plan
EngageNY

Between-Figure and Within-Figure Ratios

For Teachers 9th - 10th Standards
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...
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Lesson Plan
Mathematics Assessment Project

Comparing Strategies for Proportion Problems

For Teachers 7th Standards
Having problems with proportions? Then solve these proportion problems with an exercise that asks learners to first individually solve a set of problems involving ratios and proportional reasoning. Groups then discuss provided sample...
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Lesson Plan
Curated OER

Proportionally Speaking!

For Teachers 6th - 8th
Pupils are introduced to the concept of proportions. In groups, they practice solving equations and identify the fraction and ratio as well. They complete a worksheet following the steps outlined to them to review the concept.
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Worksheet
Curated OER

Ratio Word Problems: Multiple Choice

For Students 5th - 8th
Learners complete ratio word problems containing one and two-digit numbers. They complete 10 multiple choice questions.
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Worksheet
Curated OER

Family Letter - Foreign Currency and Exchange Rates: Proportions and Ratios

For Students 6th - 8th
In this proportions and ratios learning exercise, students solve 6 short answer problems. Students find the foreign currency exchange rates for six countries. Students express the exchange rate as a proportion or ratio.
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Lesson Plan
Willow Tree

Ratios and Proportions with Congruent and Similar Polygons

For Students 8th - 11th Standards
Investigate how similar and congruent figures compare. Learners understand congruent figures have congruent sides and angles, but similar figures only have congruent angles — their sides are proportional. After learning the...
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Lesson Plan
Curated OER

Using Ratios

For Teachers 8th - 10th
Students study the Golden Ratio and its relationship to Renaissance artists. After exploring proportions and ratios used by Renaissance artists, students create a mix of ten variations of color paint, and record the ratios of primary...
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Worksheet
Math Mammoth

Ratios and Proportions

For Students 5th - 6th
For this ratios and proportions worksheet, learners complete several activities that advance their understanding of proportions and ratios. Students solve six equations and five word problems.
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Lesson Plan
Curated OER

Solve Percent Problems Using Proportions

For Teachers 9th - 10th
Students explore proportions and ratios. In this solving percent problems lesson, students examine percent problems including tax and percent of change.
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Worksheet
Math Mammoth

Problems with Ratios

For Students 7th - 8th
In this math worksheet, students compare four sets of ratios. They solve four proportions. Students use proportions and ratios to solve four word problems.
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Worksheet
Curated OER

Ratio Tables

For Students 7th - 8th
In this ratio table worksheet, students complete ten ratio tables. Students identify three equivalent fractions to equal the value of the given one. This one-page worksheet contains ten problems.
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Lesson Plan
Curated OER

Effects of Changing Dimensions Proportionally

For Teachers 10th
In this geometry worksheet, 10th graders examine the effect of changing the dimensions of a figure proportionally on the perimeter, circumference, and area.  The one page worksheet contains six problems.  Answers are  included. 

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