Curated OER
Triangles & Congruence, Proportions & Similarity, Right Triangle & Trigonometry
Students are introduced to the topic of congruence and proportions in Geometry. Using technology, they construct and validate the properties of various geometric figures and identify whether it is congruent or proportion to the objects...
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Jazz and Math: The Beat Goes On
Students collect real data through listening, counting and timing jazz pieces.They use ratios, rates, and proportions to report collected data and demonstrate an understanding of the concepts of rhythm and tempo in music.
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Proportionality Using "Jack & the Beanstalk"
Students apply ideas of proportionality from "Jack and the Beanstalk." They compare objects that are proportional to Jack with those that are in proportion to the Giant. They measure their hands and use those measurements to determine...
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Strength in Size? Madagascar Cockroach Pulls
Fourth graders conduct an experiment involving size and relative ability in smaller species using Madagascar cockroaches. They make predictions about how many pennies the roaches can pull, compare the results to human strength, and...
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Dreaming with Marc Chagall
Students scrutinize the early twentieth-century artists who dealt with expressionism and abstraction, especially Marc Chagall. This four lesson unit examines the life and work of Chagall and supports the student creation of works similar...
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What's Math Got To Do With It?
Students explore numbers, computation, ratios, proportions, probabilities, statistics, and money in this six lessons unit. Practical applications in the real world are emphasized through an interactive approach to math in these lessons.
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All About Ratios
Students investigate the use of multiplication and division of whole numbers to solve problems including equivalent ratios and rates.
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Ratio and Proportions
Students explore the means and extremes of a proportion, the how to make a scale drawing.
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A Recipe For Success
Sixth graders explore a relevant application of ratios and proportions. They apply this concept through guided practice and interactive feedback.
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Cyclops
Students read Odysseus and the Cyclops, then complete variety of math problem solving activities. They select a possession of the Cyclops to determine what the size of the object should be in comparison to normal size.
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Baseball Proportion
Eighth graders measure regular baseball bats and souvenir bats in centimeters. They determine how tall a person would be to be in proportion to the souvenir bat, create a poster depicting the person, and explain the proportional...
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Go Fish!
Eighth graders use goldfish crackers to simulate a capture-recapture method of data collection. They fill in a chart and determine the averages. They find the estimated population of fish and the actual population of fish based on the...
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A Matter of Proportion
Students measure the relative heights of the mosaic giraffe and its trainer and compare their proportions to an actual giraffe and zoo trainer.
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Ratio and Unitary Methods
In this ratios worksheet, middle schoolers solve 4 short answer problems. Students determine the number of girls/boys and oranges/water given a ratio.
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Math: "Scales"
Third graders investigate ratios and rates. In this third grade mathematics lesson, 3rd graders identify equal ratios and rate and test for proportionality. This lesson is created to be use in conjunctions with a particular textbook,...
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Rice Problem
In this measurement conversion worksheet, students solve and complete 35 different problems. First, they read the passage and determine if they could have passed the examination described. Then, students find how much processed rice a...
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Can a Geometric Mean be Nice?
In this Geometry instructional (work)sheet, students are instructed on how to find the geometric mean. Students are then shown how the geometric mean is applied to proving similar triangles.
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Calculus Worksheet: Rate of Change (2)
In this rate of change worksheet, students compute the amount of time a block of ice will take to melt. There is only one question on the page.
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Side Lengths of Similar Shapes
In this geometric shapes worksheet, students analyze similar shapes and find the missing length using a proportion. There are no examples.
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Ratios and Proportions
Seventh graders explore the concept of ratios and proportions. In this ratios and proportions instructional activity, 7th graders work in groups to measure their heights and their arm span. Students compare their height to their arm...
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Tile My Bathroom Floor
Seventh graders create a bathroom floor plan using measurement math. In this measurement lesson, 7th graders use measurement, proportionality, estimation, and area to design a floor plan. Students design floor tiles using centimeter...
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Solving Percent Problems with Proportions
Seventh graders explore the concept of percent problems. In this percent problem instructional activity, 7th graders use proportion equations to solve percent problems. Students find percentages of numbers and use proportions to...