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Lesson Plan
Curated OER

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.
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Worksheet
Helping with Math

Ratio and Proportion: Simplifying Ratios (2 of 2)

For Students 6th - 9th Standards
In this assignment, math stars simplify ratios. The first half just displays numbers, whereas the second half describes real-world scenarios with ratios to be written and reduced. The publisher mentions CCSS.Math.Content.6.RP.3, but it...
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Worksheet
Curated OER

Ratios and Equivalent Ratios

For Students 6th - 7th
In this equivalent ratios worksheet, students simplify 6 ratios and write each in 2 different ways. Students solve 8 proportional equations using equivalent ratios to find a missing term. Students solve 2 test prep questions regarding...
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Worksheet
Curated OER

Cylinder: Teacher Notes

For Students 6th - 8th
Middle schoolers construct a basic cylinder out of a piece of paper, then answer seven questions about their cylinder. Questions have to do with measurement, volume, radius, etc.
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Worksheet
Curated OER

Countdown Challenge: Similarity

For Students 7th - 8th
In this similarity worksheet, students use similar rectangles to find the length of a diagonal. They use symbols and write paragraphs to explain the problem. This one-page worksheet contains one similar problem with 13 related questions.
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Worksheet
Curated OER

Countdown Challenge: Similarity

For Students 7th - 8th
For this similarity worksheet, students observe similar rectangles and determine the length of the diagonal. They use words, symbols and diagrams to solve the problem and explain the results. This one-page worksheet contains one...
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Lesson Plan
Curated OER

Rate-of-Work Problems

For Teachers 9th
In this rate-of-work worksheet, 9th graders read word stories and gather information. They write an equation for the story and solve the problem. There are five problems, with answers, provided on this one-page worksheet.
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Lesson Plan
Curated OER

Conserving Chemical Resources

For Teachers 9th - 12th
High schoolers balance chemical equations and solve for gram to mole ratios.
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Lesson Plan
Curated OER

Applications Involving Quadratic Equations

For Teachers 8th - 9th
In this algebra worksheet, students solve 6 word problems. Problems include the necessary equations. Students solve 5 formulas by isolating the indicated variable.
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Lesson Plan
Curated OER

Geometric Applications

For Teachers 8th - 9th
For this geometry worksheet, students solve 5 word problems. Each of the problems involves finding one side of a right triangle. Story problems relate the Pythagorean Theorem to building ramps, shadows, and the length of a banner.
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Lesson Plan
Curated OER

Worksheet #4: Simplify Algebraic Expressions With Two Variables

For Teachers 9th - 10th
In this algebraic expression worksheet, students simplify algebraic expressions and solve proportions, and write equations from story problems. Thirteen of the 49 problems are fill in the blank, and the remainder are multiple choice.
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Lesson Plan
Curated OER

Stocks, Sauces, Soups

For Teachers 9th - 10th
Written for a food and nutrition class, this resource has young chefs prepare chicken noodle soup. It begins by teaching vocabulary required for making soups, sauces, and stocks, as well as how to calculate percentages from given ratios....
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Lesson Plan
Curated OER

Shopping-Unit Pricing

For Teachers 5th - 8th
Comparing unit prices of food products is a skill that learners will use for the rest of their lives. Here is a simple plan that provides practice calculating the unit price for various grocery store products. Use two jars with differing...
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Lesson Plan
Curated OER

Horatio's Ratios

For Teachers 6th - 8th
View a PBS video entitled Horatio's Drive and explore Horatio's Ratios. Collaborative learners form groups to use Mapquest to determine distances covered. They generate the mathematical averages, ratios, and rates in order to calculate...
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Lesson Plan
Curated OER

Converting Measurements

For Teachers 6th
Sixth graders convert customary linear measurements. They explore using ratios to convert from inches to feet, ounces to pounds, etc. In groups, 6th graders complete conversions. They explain to the class how to solve their 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

Probability

For Teachers 5th - 6th
Using real life examples, learners discuss probability and ratios. They begin by answering a set of questions, and then participate in a probability activity involving a bag of colored cubes.
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Lesson Plan
Curated OER

Using Proportions to Solve Problems

For Teachers 6th
Skittles and math? Pupils will work as a class to determine how many orange Skittles are in a large bag by using proportions. They will problem solve, estimate, and share their thinking. Then, they will each receive a small bag of...
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Worksheet
Curated OER

Using Similar Polygons

For Students 10th
In this geometry learning exercise, students use the properties of similar polygons to find the indicated missing length or the scale factor. The two page learning exercise contains twenty-two questions. Answers are included.
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Worksheet
Curated OER

Kuta Software - Infinite Geometry: Similar Triangles

For Students 9th - 12th
For this similar triangles worksheet, students solve 20 short answer problems. Students determine if two given triangles are similar.  Students determine the type of similarity given two triangles. Students are given a sketch of the...
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Worksheet
Curated OER

Geometric Series 2.3

For Students 9th - 11th
Students will determine if a series of numbers are geometric, arithmetic, or neither and determine the common ratio if appropriate. In this geometric units lesson, students given a geometric series, determine the general term, and the...
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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

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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Interactive
Curated OER

Similar Polygons

For Students 7th - 8th
In this similar polygons worksheet, students identify the corresponding sides of polygons.  They use proportions to solve problems.  Students determine the scale factor of similar figures.  This two-page worksheet contains diagrams and...