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Lesson Plan
Curated OER

Sled Kite Proportions

For Teachers 6th - 8th
Students build sled kites. in this kite building lesson, students must read directions for kite building and enlarge the proportions of the given kite pattern. Students focus on the angles and line of symmetry in their kite. 
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Worksheet
Curated OER

Ratio and Proportion

For Students 9th - 12th
In this ratio and proportion worksheet, students solve 22 short answer and multiple choice problems.  Students use rates, proportions, and ratios to solve each problem.
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Worksheet
Curated OER

Lesson 3-5: Proportions and Similar Figures

For Students 9th - 12th
In this similar figures activity, students use proportions to solve 6 short answer and multiple choice questions.  Students use proportions to answer questions about map scales and height of trees given shadow lengths.
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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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Worksheet
Curated OER

Math Hw #15: Proportions

For Students 9th - 12th
In this proportions worksheet, students solve 8 word problems. Students determine the cost of an item given a unit cost. Students find a missing side length of a triangle using proportions of similar triangles.
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Lesson Plan
Curated OER

Proportionality, Ratios and Constant Variation

For Teachers 9th - 11th
Students use Scion Image to estimate the proportion of space images. In this proportion lesson, students investigate the online site of Image of the Orbitor and relate the dimensions and sizes to known sizes.
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Lesson Plan
Curated OER

Similar Triangles and Proportions

For Teachers 9th - 12th Standards
Pupils investigate similar triangles and proportions as they make conjectures about the length of sides of similar triangles. For this lesson, have your class construct similar triangles using Cabri Jr so that they share a common vertex.
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Lesson Plan
Curated OER

Ratios, Proportions and Percents

For Teachers 5th
Fifth graders complete 3 activities centered around percents. In this ratios, proportions and percents activity, 5th graders create designs on grid paper that illustrate a variety of percents, solve percent problems mentally, and use...
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Lesson Plan
Curated OER

How Big Is That Star?

For Teachers 6th - 9th
Aspiring astronomers study stars. They compare stars and explain the relationship between radius, mass, and diameter. By creating a star simulation, they discover how a binary star system's orbit can cause changes in the observed...
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Worksheet
Curated OER

Solving for Missing Proportions

For Students 5th - 10th
In this missing proportions worksheet, students solve for the variables that appear in the proportions with one, two, and three digit numbers. Students complete 10 problems total.
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Worksheet
Curated OER

Use Proportions - Problem Solving 17.5

For Students 6th
For this proportions worksheet, 6th graders use the problem solving steps of understand, plan, solve and look back to solve a story problem using proportions.
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Worksheet
Curated OER

Using Proportions To Solve Word Problems

For Students 4th - 5th
In this proportion worksheet, students solve a set of 7 questions using proportion. A reference web site for additional activities is given.
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Worksheet
Curated OER

Glencoe - Proportions and Similar Triangles

For Students 9th - 12th
In this proportions and similar triangles learning exercise, high schoolers solve 14 multiple choice problems. Students find unknown sides of similar triangles using proportions. High schoolers multiply means and extremes to solve...
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Worksheet
Math Mammoth

Ratios and Proportions

For Students 6th - 8th
In this math learning exercise, middle schoolers use cross multiplication to find the solutions to the given proportions. Then they write the proportions to solve the word problems.
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Worksheet
Curated OER

Rations and Proportions

For Students 9th - 12th
In this ratios and proportions worksheet, students answer 8 questions in which they are setting up and solving proportions. One problem also consist of several polygons in which students must identify missing information.
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Worksheet
Curated OER

Using Proportions

For Students 8th - 12th
In this similarities learning exercise, students set up ratios and solve proportions using algebra. All of the equations turn out to be linear with no quadratics to solve. There are 20 questions.  
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Lesson Plan
Curated OER

Writing Proportions-#3

For Teachers 3rd - 4th
In this proportions worksheet, students solve 7 word problems using proportion. A reference web site is given.
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Lesson Plan
NTTI

If You Hopped Like a Frog

For Teachers 6th - 8th Standards
Get your frogs hopping by introducing them to the concepts of ratio and proportion. As a class, they perform arithmetic operations using ratios then discover how they represent quantitative relationships. In groups, they write their own...
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Interactive
Curated OER

Exploring Slope

For Students 7th - 8th
In this exploring slope learning exercise, students solve and complete 4 different problems. First, they compare an object's weight on Earth to an object's weight on another planet using the information given. Then, students compare this...
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Lesson Plan
Curated OER

How Many Noses Are in Your Arm?

For Teachers 6th - 8th
Middle schoolers apply concept of ratio and proportion to determine length of Statue of Liberty's torch-bearing arm. They view video of Statue of Liberty, determine how long statue's arm would be if its nose measures four feet six...
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Lesson Plan
Illustrative Mathematics

Sore Throats, Variation 2

For Teachers 6th - 8th Standards
What does math have to do with a sore throat? When you mix water and salt you have a great review of how to represent proportional relationships by an equation or graph. Here the proportions of the mixtures may be different, but the...
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Lesson Plan
Curated OER

Pike Problems in Lake Davis

For Teachers 8th - 12th
Pike fish pose a threat to native trout and catfish in lakes. Would you drain and poison a lake to get rid of the Pike fish? If the lake was drained and poisoned, then refilled and repopulated with trout and catfish, how would you...
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Lesson Plan
Curated OER

Learning Ratios and Proportions Through Scale Drawings

For Teachers 7th - 9th
Middle and high schoolers explore the concept of scale drawings. They discuss what a scale is and that scales provide a ratio. Pupils construct a scale drawing of their classroom using graph paper.
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Lesson Plan
Curated OER

Rational Equations and Proportions

For Teachers 7th - 8th
In this rational equations worksheet, students solve and complete 11 various types of problems. First, they find a number that is the reciprocal of one described in each statement. Then, students solve for the variable in each expression.

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