Lesson Plan
Curated OER

Proportions a/b=c/d

For Teachers 8th - 10th
Young scholars calculate distance and proportion of objects. In this algebra lesson, students define proportion and how it is used in math. They solve the problem through guided instruction.
Lesson Plan
Curated OER

Recipes and Ratios

For Teachers 7th - 8th
Students use ratio and proportions to adjust recipe size.  In this middle school mathematics instructional activity, students investigate Native American food and adjust the recipe size for said foods to the number of servings...
Lesson Plan
Curated OER

Are You a Golden Ratio?

For Teachers 6th - 8th
Young scholars explore the concept of the golden ratio in nature and architectural design. They discuss examples such as petals on a sunflower and the Parthenon. In small groups they take turns measuring their body parts to find a...
Lesson Plan
Curated OER

Baseball Proportion

For Teachers 8th
Eighth graders measure regular baseball bats and souvenir bats in centimeters. They determine how tall a person would be to be in proportion to the souvenir bat, create a poster depicting the person, and explain the proportional...
Lesson Plan
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A Matter of Proportion

For Teachers 6th - 8th
Students measure the relative heights of the mosaic giraffe and its trainer and compare their proportions to an actual giraffe and zoo trainer.
Lesson Plan
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Applications, Proportions, and Problem Solving

For Teachers 6th - 9th
In this math worksheet, students find the solutions to the problems involving proportions. They also compare the similar triangles.
Worksheet
Curated OER

Proportions

For Students 7th - 8th
In this proportion instructional activity, students identify equivalent fractions and solve proportions. This one-page instructional activity contains ten problems.
Worksheet
Curated OER

Algebra Using Proportions

For Students 10th
In this algebra using proportions worksheet, 10th graders solve 14 various types of problems by applying algebra methods to geometry. First, they solve each of 8 proportions using cross products. Then, students use the triangle shown and...
Worksheet
Curated OER

Unit 5: Worksheet 4 - Proportion

For Students 8th - 10th
For this proportion worksheet, students use proportions to find the length of a missing side of similar triangles. They find percent of a number, and solve real life story problems with percents and discounts. This two-page worksheet...
Worksheet
Curated OER

Proportion Problems

For Students 5th - 8th
In this proportions instructional activity, students complete proportion word problems including one and two digit numbers. Students complete 6 numbers.
Lesson Plan
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Introduction To Ratios

For Teachers 3rd - 5th
Young scholars engage in a lesson that is involved with ratios. They use the jigsaw in order to actively take part in the lesson. Students play the game with the ratio puzzle pieces. The puzzle is completed while using the follow up...
Worksheet
Curated OER

Word Proportions

For Students 4th - 8th
In this word proportions learning exercise, students complete equivalent proportions to have the number equal to another form. Students complete 10 problems.
Lesson Plan
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Get Geared Up

For Teachers 9th - 11th
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.
Lesson Plan
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Investigation - The Local Bagel Shop

For Teachers 6th
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...
Lesson Plan
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60-30-10

For Teachers 6th - 8th
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.
Lesson Plan
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Shots, Standings, and Shopping

For Teachers 6th - 8th
Rates and ratios can easily be applied to real-world situations. Learners explore a series of websites in order to procure comparable data. They define ratios and rates, view videos, and use the internet to explore how ratios and rates...
Lesson Plan
Curated OER

Old Glory

For Teachers 6th - 8th
Students utilize mathematical concepts such as: measurement, ratio and proportion and geometric probability to analyze the components of the U.S. Flag. They collect, organize and interpret data by constructing charts, tables and graphs...
Worksheet
Curated OER

Unit 5: Worksheet 3 - Similar Triangles

For Students 8th - 9th
In this similar triangles learning exercise, students use proportions to solve for the missing sides of similar triangles. This two-page learning exercise contains 16 multi-step problems.
Worksheet
Curated OER

Countdown Challenge: Shadow Sleuth

For Students 7th - 8th
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.
Lesson Plan
Curated OER

Frame Yourself

For Teachers 5th - 6th
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. 
Lesson Plan
EngageNY

Ratios of Fractions and Their Unit Rates 2

For Teachers 7th Standards
Remodeling projects require more than just a good design — they involve complex fractions, too. To determine whether a tiling project will fit within a given budget pupils calculate the square footage to determine the number of...
Activity
101 Questions

Binder Clips: Large, Medium, Small

For Teachers 4th - 8th Standards
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...
Lesson Plan
EngageNY

An Experience in Relationships as Measuring Rate

For Teachers 7th Standards
Compare the ratio of genders in classes with a lesson that revisits ratio terminology. After finding the ratio of boys and girls, the class then finds the time it takes to pass out papers and determines the associated rates.
Assessment
Mathematics Assessment Project

100 People

For Teachers 6th - 8th Standards
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...

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