Worksheet
Curated OER

Proportions 1

For Students 9th - 11th
In this proportion activity, students find the missing side of 4 shapes that are similar to their mate. Shapes include triangles and quadrilaterals,. In the second part of the activity, students use the scale factor to find missing...
Worksheet
Curated OER

Lesson 3-5: Proportions and Similar Figures

For Students 9th - 12th
In this similar figures worksheet, 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.
Worksheet
Curated OER

Equivalent Ratios

For Students 5th - 6th
In this equivalent ratios worksheet, students solve 4 problems in which equivalent ratios are found by completing a ratio table. Students multiply each term of the fraction by the same number.
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

Percent Notation

For Students 7th - 10th
In this algebra worksheet, students divide circles into equal portions as they explore percents and decimals. They convert between decimals and fractions using ratio and proportion. There are 8 questions.
Worksheet
Curated OER

Glencoe - Proportions and Similar Triangles

For Students 9th - 12th
In this proportions and similar triangles learning exercise, students solve 14 multiple choice problems. Students find unknown sides of similar triangles using proportions. Students multiply means and extremes to solve proportions.
Worksheet
Curated OER

Ratio Measures

For Students 10th
In this ratio measures worksheet, 10th graders solve and complete 8 different types of problems. First, they find the largest angle of a hexagon. Then, students solve the proportions shown. They also name the similar figures by filling...
Activity
Noyce Foundation

Measuring Mammals

For Students K - 12th Standards
Explore the meaning of scale and proportion with a set of five activities that examines the topic from elementary through high school. The first lessons explore ratio by examining pictures of different sizes. The next three activities...
Handout
Cabrillo College

Elementary Algebra

For Students 8th - 11th Standards
Hello Algebra! If you're in need of a resource with a books worth of examples and practice problems, this is it. Some topics include linear equations, polynomials and exponents, rational expressions, quadratic equations, and a...
Worksheet
Lane Community College

Review Sheets: Beginning Algebra

For Students 6th - 9th Standards
This jumbo instructional activity contains everything you need to get through Pre-Algebra. Begin with simple expressions, and end with linear functions and polygons. There are multiple problems for each topic to make sure those skills...
Assessment
Noyce Foundation

Cereal

For Teachers 6th - 7th Standards
Find the best protein-packed cereal. The short assessment task covers equivalent and comparing ratios within a context. Pupils determine the cereal with the highest ratio of protein. A rubric helps teachers with point allotments for...
Worksheet
Yummy Math

Starbucks Drinks

For Students 6th - 8th Standards
The casual language and popular topic will make this assignment all the more engaging for your middle school math class. They use Starbucks beverage sales and nutrition values to practice ratios, proportions, statistics, and...
Lesson Plan
Illustrative Mathematics

Gotham City Taxis

For Teachers 6th - 8th Standards
Taxi! Have your travelers figure out how far they can go in a taxi for $10.00. They must account for the mileage rate and tip in their calculation. They can set up a table or make an equation to solve for the exact mileage they can...
Lesson Plan
Illustrative Mathematics

Security Camera

For Teachers 6th - 8th Standards
A different-than-normal problem that allows learners to practice their reasoning to find an answer. The problem bases itself off a graph drawing of a store that needs to install security cameras. The challenge is to find which placement...
Assessment
Noyce Foundation

Snail Pace

For Teachers 6th Standards
Slow and steady wins the race? In the assessment task, scholars calculate the rates at which different snails travel in order to find the fastest snail. Hopefully, your class will move much more quickly in finishing the task!
Worksheet
Curated OER

Create Proportions

For Students 4th - 5th
In this ratio worksheet, students create the correct proportion from the given set of numbers. There are six sets of numbers.
Interactive
Curated OER

My Test Book: Ratios

For Students 5th - 6th
In this online interactive math skills instructional activity, students solve 10 multiple choice math problems regarding ratios. Students may view the correct answers.
Worksheet
Curated OER

Using Ratio to Express a Rate

For Students 9th
In this Algebra I worksheet, 9th graders use a ratio to express a rate.  The one page worksheet contains two multiple choice questions.  Solutions are provided. 
Worksheet
Curated OER

Mean Twisters - Mean Proportional

For Students 9th - 10th
For this mean proportional worksheet, students work in pairs to solve right triangle problems. They use ratios and proportions of similar triangles to determine a missing length. This two-page worksheet contains 16 problems.
Assessment
1
1
Balanced Assessment

House Plan

For Students 9th - 12th Standards
A short assessment has individuals determine the scale of a house plan. They use the scale to calculate the size of a door and window that need to be replaced, and then divide a bedroom in two, calculating the size of rooms created.
Assessment
Curated OER

Dental Impressions

For Teachers 7th - 10th Standards
What an impressive task it is to make dental impressions! Pupils learn how dentists use proportional reasoning, unit conversions, and systems of equations to estimate the materials needed to make stone models of dental impressions....
Worksheet
Curated OER

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

For Students 6th - 8th
In this proportions and ratios worksheet, 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.
Worksheet
Curated OER

Quiz: Rewriting Ratios

For Students 4th - 6th
In this rewriting ratios instructional activity, learners observe models and read short statements. Next, they write ratios to depict the models and describe the statements. Students write their ratios in lowest terms. This one-page...
Worksheet
Curated OER

Proportion Problems

For Students 5th - 6th
In this proportion worksheet, students use work space provided and state whether rations are proportional. Answers are included on page 2.

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