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Worksheet
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Using Proportions

For Students 8th - 12th
In this similarities worksheet, 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

Scale Drawing

For Teachers 9th - 10th
Students use ratio and proportions to solve problems. In this geometry instructional activity, students apply ratio and proportions to real life scenarios.
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Lesson Plan
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Mixing Up Ratios

For Teachers 9th - 10th
Students solve problems of ratio and proportions using hands on. In this algebra lesson plan, students vary the concentration of a fruit drink using parts of a ratio.
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Lesson Plan
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The American Flag-Basic Ratios and Proportions

For Teachers 9th - 10th
Students solve problems with ratios and proportions. In this algebra instructional activity,students apply the concept of ratios and proportions to the real world.
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Lesson Plan
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The Golden Ratio

For Teachers 9th - 11th
Students solve problems using ratios and proportions. In this algebra instructional activity, students verify proportions, solve for the unknown and use real life scenario to model proportion.
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Worksheet
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Proportions and Percents

For Students 9th
In this Algebra I worksheet, 9th graders use proportions to solve problems involving percents.  The one page worksheet contains a combination of ten multiple choice and free response problems.  Answers are provided. 
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Worksheet
Curated OER

A Geometry Worksheet - Similar Triangles

For Students 9th - 12th Standards
In this similar triangles worksheet, students find the scale factor of 6 sets of similar triangles. Students find the scale factor of two similar triangles given a sketch with measurements. Students use proportions to find a missing side...
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Interactive
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Similar Figures

For Students 7th - 10th
In this similar figures worksheet, students identify the meaning of similar, corresponding sides, and congruent.  They use proportions to find the length of a missing side.  Students dilate given figures according to a scale factor. ...
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Worksheet
Curated OER

Math Regents Exam Questions: Proportions

For Students 8th - 10th
In this proportions learning exercise, students solve 1 multiple choice question.  Students determine the amount of milk needed to keep a cake recipe proportional.
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Worksheet
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Math Regents Exam Questions: Verbal Problems Involving Ratio

For Students 9th - 12th
In this ratios worksheet, students solve 6 multiple choice and short answer word problems.  Students use ratios of boys to girls and deer to foxes to find the number of boys, girls, deer, and foxes in a given population.
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Worksheet
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Chapter 8 Extra Problems Worksheet: Similar Triangles

For Students 9th - 12th
In this similar triangles instructional activity, students solve 6 similar triangles. Students use proportions to solve similar triangles and similar rectangles.
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Worksheet
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Math Hw #15: Proportions

For Students 9th - 12th
In this proportions activity, 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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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
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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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Worksheet
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Points on a Line Segment

For Students 10th
In this geometry worksheet, 10th graders solve a problem relating to the length of a line segment.  The location of the points on the segment is given in terms of ratios.  The one page worksheet has one problem with the solution. 
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Interactive
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Basic Proportions Worksheet

For Students 6th - 8th
In this middle school mathematics learning exercise, students use cross multiplication to solve proportions. The interactive learning exercise has a "step-by-step" link for an in-depth solution. The one page learning exercise has twenty...
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Lesson Plan
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Clay Portrait Project

For Teachers 3rd - 5th
Young scholars discuss facial proportions and mix colors similar to flesh tones. For this art lesson, students draw and paint a portrait and then translate this image into a 3D form using clay.
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Worksheet
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Percent Word Problems

For Students 7th - 9th
For this word problem worksheet, students find the percent of a number.  This two-page worksheet contains 18 problems.  Answers are provided on the last page.
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Lesson Plan
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New York State Testing Program

For Teachers 6th - 8th
In this state testing worksheet, students solve problems on a variety of topics studied throughout the year.  They find the median, solve algebraic equations, solve proportions, simplify expressions, find percents, and complete...
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Lesson Plan
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Indirect Measurement with Similar Triangles

For Teachers 9th - 12th
Students use similar triangles to find missing heights.  In this using similar triangles to find missing heights lesson plan, students use proportions to find the heights of missing side lengths.  Students find the height of trees and...
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Lesson Plan
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Calculation the Cricumference of Earth using "Google Earth"

For Teachers 8th
Eighth graders investigate properties of circles.  In this eight grade mathematics lesson plan, 8th graders apply proportional reasoning to data gathered with “Google Earth” to calculate equatorial and polar circumference of the Earth. 
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Lesson Plan
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Paper Pool

For Teachers 7th - 8th
Learners explore ratio and proportion, GCF, and LCM. In this middle school mathematics lesson, students play an interactive Paper Pool game that provides an opportunity to increase their understanding or ratio, proportion, GCF, and LCM....
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Worksheet
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Linear Equations

For Students 8th - 10th
In this linear equations worksheet, students solve each problem for a given variable.  All problems contain fractions.  Variables appear in the denominator and/or in the neumerator.  This two-page worksheet contains 20 problems.  Answers...
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Worksheet
Curated OER

Simplify Ratio: Word Problems

For Students 4th - 6th
In this finding the ratio in word problems worksheet, students use the work space to solve and simplify. Students solve four problems.