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Surface Area to Volume Ratio

For Teachers 7th - 10th
Students examine the surface area to volume ratio and how they relate.  In this surface area lesson students complete several activities.
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Family Letter - Foreign Currency and Exchange Rates: Proportions and Ratios

For Students 6th - 8th
In this proportions and ratios activity, 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
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Ratio, Proportion And Percent

For Students 6th - 8th
In this math worksheet, students evaluate and compare the ratios. They also compare the fractions by solving the proportions.
Worksheet
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Leveled Problem Solving Ratios

For Students 4th - 7th
In this ratios practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
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Unit 5: Worksheet 1 - Ratio

For Students 7th - 10th
In this ratio worksheet, students identify and compare colors of marbles in a bag. They also compare lengths. Students write ratios to identify their comparisons. This three-page worksheet contains approximately 40 ratio problems.
Worksheet
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Ratio and Proportion: Proportional Ratios

For Students 6th - 8th Standards
In this ratios worksheet, students write yes or no for if the ratios given are proportional or not. Students complete 7 number problems and 5 money problems.
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Scale factors: Ratios and Proportions

For Teachers 8th - 11th
Pupils create building and models using scale factors. In this geometry lesson, students apply the properties of ratio and proportion to solve problems. They identify the means and extremes property of cross multiplication.
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Ratios and Proportions

For Students 4th - 5th
In this math worksheet, students examine 4 ratio and proportion problems which have picture clues to help. Students solve the problems and express the proportions as fractions and simplify.
Worksheet
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Ratio and Proportion-- Sweets in a Bag

For Students 5th - 6th
In this math learning exercise, students study ratio and proportion by solving 12 word problems. The examples pertain to the color of candies in a bowl and also the ration of boys to girls in a classroom.
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Ratios

For Teachers 6th - 7th
Young scholars explore the concept of ratios. In this ratios lesson plan, students use matchbox cars and models of spaceships to explore ratios. Young scholars determine scale for the above mentioned objects in this lecture style lesson...
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Number: Ratio

For Teachers 3rd - 4th
Students explore the concept of ratios. In this ratio lesson, students complete a ratio worksheet and play a multiplication game that requires them to solve multiplication facts.
Worksheet
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Hidden Ratios

For Students 10th - 12th
In this ratios worksheet, learners measure and record specified distances on a drawing of a head and shoulders. Students record information onto their graphing calculators and look for patterns in their information. They find the mean of...
Worksheet
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Ratio Word Problems

For Students 7th - 8th
For this ratio worksheet, students solve and complete 10 different problems that include determining various ratios of events. First, they determine the height of a building given the time of day and shadow it casts. Then, students...
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Ratio of Perimeter and Area

For Students 6th - 12th
In this similar figures activity, students complete a chart calculating the perimeter and area of four rectangles and then compare the ratios. There are 4 questions. 
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Seven Rates and Ratio Problems Using Tables

For Students 5th - 8th
In this rates and ratios activity, students complete tables given rates. This activity contains seven multi-part problems where students discover the steps to ratio problems.
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Ratios, Proportions, and Percents

For Teachers 8th
Eighth graders use ratios and proportions to solve real-life problems.  For this using ratios and proportions to solve real-life problems lesson, 8th graders estimate the cost of a road trip.  Students estimate the distance...
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Introduction To Ratios

For Teachers 3rd - 5th
Students 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 exercises.
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Ratio, Percent, & Proportions

For Teachers 7th
Seventh graders explore the concept of percents, ratios, and proportions. In this percents, ratios, and proportion lesson, 7th graders have 237 ounces of beads to weigh. Students work in groups to weigh the beads in a way so that each...
Interactive
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Ten Multiple-Choice Rate, Ratio, and Proportion Problems

For Students 7th
In this rate, ratio, and proportion worksheet, 7th graders solve ten multiple-choice problems.  The solutions are provided by clicking on the "show answers" on the bottom of the page.
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Recipes and Ratios

For Teachers 7th - 8th
Students use ratio and proportions to adjust recipe size.  In this middle school mathematics activity, students investigate Native American food and adjust the recipe size for said foods to the number of servings needed to feed the...
Worksheet
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Solving Problems Using Equivalent Ratios

For Students 7th - 12th
In this equivalent ratios worksheet, students solve word problems when given an equivalent ratio of the answer. Students complete 7 problems.
Worksheet
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Trigonometry Ratios in Right Triangles

For Students 10th
In this trigonometry ratios in right triangles worksheet, 10th graders solve 6 different right triangle problems. First, they find the values of x and y in each triangle, rounding each to the nearest tenth. Then, students locate the...
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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.
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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...

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