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Ratio
Students calculate the ratio and apply it to construction. In this geometry lesson plan, students convert between different units and use decimals and fractions interchangeable. They find the fraction of a given amount using the...
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Ratio Conversion Charts
For this ratio worksheet, students complete charts, given the fraction, percent and decimal conversion for given ratios. A website reference is given for additional activities.
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Ratio with Algebra
In this ratio with algebra worksheet, learners complete 6 problems, clicking on check or hint buttons for answers or help. Page includes multiple links to other resources.
Virginia Department of Education
Similar Solids and Proportional Reasoning
Double the dimensions, quadruple the surface area. Pairs build similar prisms and compare the ratios of their surface areas and volumes to the ratio of the heights. Given two similar cones, partners determine the ratios of the lateral...
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Ratios Involving the Hypotenuse
For this trigonometry worksheet, 10th graders calculate the ratios as it relates to the hypotenuse of the triangle. They find the missing leg, angle or hypotenuse. There are 6 questions with this worksheet.
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Ratios in Right Triangles
Learners calculate the sides of right triangles in this trigonometric ratios lesson. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The provided...
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Fractions as a Ratio
In this fractions to ratios worksheet, students write the fractions as a ratio with numbers less than 12. Students complete 10 problems total.
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Proportional Ratios
In this proportional ratios activity, 9th graders solve 10 different problems that include sets of fractions in each. First, they determine if the product of the means is equal to the product of the extremes. Then, students solve each to...
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Two for One Box Company: Student Worksheet
Fifth and sixth graders work alone or in pairs to determine the volume of paper boxes of various dimensions. Pupils write ratios of dimensions and volumes.
Teach Engineering
Bend That Bar
Bend it, but don't break it. Groups investigate the strength of different materials. Using a procedure in the seventh segment of a 22-part series on aviation, pupils determine how far a rod will bend. They determine the strength-to-mass...
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History's Thermometers
Ancient coral beds give scientists clues to past ocean temperatures in much the same way that tree rings indicate historical weather conditions. High school scientists examine coral oxygen isotope ratios and plot the data as a function...
Wordpress
Introduction to Exponential Functions
This lesson begins with a review of linear functions and segues nicely over its fifteen examples and problems into a deep study of exponential functions. Linear and exponential growth are compared in an investment task. Data tables are...
EngageNY
The Most Famous Ratio of All
Pupils develop a definition of a circle based upon its radius in the 17th segment of a 28-part series. They determine the relationship between the radius and the diameter of a circle. To round out the instructional activity, they use the...
Curated OER
Sore Throats, Variation 1
Why does Nia's water taste saltier than Trey's if she put more into her cup than he did? Math masters set up proportions in order to compare the mixtures. This task effectively has learners apply the concepts of ratio and proportion to a...
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Art Class, Variation 2
Given a set of six paint mix ratios, artistic mathematicians produce an equation that relates the number of parts for blue paint to parts for yellow paint resulting new shades of green.
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Lunch Food? Mmmm! Mmmm! Good!
Examine how nutrition plays an important role in our lives by conducting online research and developing lunch menus that satisfy nutritional requirements set up by the United States Department of Agriculture. Learners download recipes,...
Dick Blick Art Materials
Start with a Circle...
The Golden Ratio. The Divine Proportion. Yup. It's math and art blended into one colorful activity. Young artists combine colored tissue paper circles and parts of circles to create geometric patterns. As a bonus, kids get to figure out...
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Comparing Ratios
In this comparing ratios worksheet, students solve and complete 3 different problems using the screens shown. First, they write a ratio that compares the shaded part to unshaded part illustrated. Then, students use the same grid to...
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Ratios in the Garden
In this ratios worksheet, students answer questions about the ratios of the area of each section of a garden and then complete their own garden in a grid. Students answer 5 questions.
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Trigonometry Ratios in Right Triangles
In this trigonometry ratios in right triangles worksheet, 10th graders solve 10 different trigonometric ratios that apply to right triangles. First, they define a trigonometric ratio and its three most common ratios, sine, cosine, and...
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Ratios
Students identify ratios to compare quantities and understand proportions. In this math lesson plan, students work in groups and use facts from the Holocaust to calculate ratios and percentages.
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Ratios and Percents
Sixth graders practice finding percentages, converting them, and analyze percentage statistics and facts about rice. In this ratios and percentages lesson, 6th graders read information about percentages related to rice. Students complete...
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Using Ratio to Express a Rate
In this Algebra I instructional activity, 9th graders use a ratio to express a rate. The one page instructional activity contains two multiple choice questions. Solutions are provided.
Curated OER
Probability: Ratios and Percents
Students investigate ratios and percents. For this algebra lesson, students explore the probability of an event occurring. They convert between ratios and percents as they solve the odds.
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