Curated OER
It's All About Scale
Sixth graders investigate scale models of toys. In this scale models of toys lesson, 6th graders bring in toys from home to measure. Students discuss scale and what scale is used with their toys. Students determine the...
Curated OER
Proportions
Students perform mathematical operations to create proportional measurements, after listening to the David Schwartz book, If You Hopped Like a Frog.
Curated OER
Scale factors: Ratios and Proportions
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.
Math Can Take You Places
Picture This
Engage scholars in a ratio lesson that employs real-world scenarios. Learners will compare the length and width of pictures and use a table to identify ratio patterns. They watch "Math Can Take You Places" and discuss jobs that use math...
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Solve for Scale Factors Using Proportions
Eighth graders solve problems using proportions with scaled drawings. They work with maps and blue-prints discussing scales and plans and examine different polygons and figure out the scale factors or proportions they have been changed by.
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Super Size It, Please!
Pupils take photos from a given distance and determine the height of the person using a scale factor. Pupils calculate the ratio of student actual height to student photo height. They take pictures from 3 different distances to see if...
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Stadiums in America
Let's play ball! A great springtime activity to learn about ratios. This activity challenges learners to draw stadiums to scale on standard letter paper and also on construction paper. This three-day lesson includes a pre-assessment...
Illustrative Mathematics
Cooking with the Whole Cup
Whoops! Travis accidentally put too much butter into the recipe. Your bakers must find out how to alter the recipe to accommodate different changes by using unit rates and ratios . The activity has multiple parts and calculations with...
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Measure for Measure
Young mathematicians work to recognize the relationship between their scale models of the Joides research vessel and the real vessel. They calculate the relationships between various parts of the ship using fractions, ratios, and...
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Zipping Through Our Solar System and Beyond
Launch your class on an exploration of the solar system. Learners construct solar system models to scale and get a better understanding of our place in the vast void of space. This is a great way for them to cement their understanding of...
EngageNY
More About Similar Triangles
Determine whether two triangles are similar. The lesson presents opportunities for pupils to find the criterion needed to show that two triangles are similar. Scholars use the definition of similarity to find any missing side...
Curated OER
Scale Me Down
Students create scale drawings, and ultimately scale models, of real-world objects in this Math instructional activity about ratios, proportion, scaling factors, and cross products. The instructional activity includes ideas for...
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Lesson Plan: Using Maps and Scales to Get to the Basketball Hall of Fame
Students view a quicktime video of basketball players going from Atlanta to Springfield, Mass. For this scaling lesson, students use a map to calculate the distance of the trip and the length of travel time. Students apply ratio and...
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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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Using Ratios to Taste the Rainbow
Students solve problems using ratios and proportion. In this algebra lesson, students analyze skittles and their different colors as they apply the properties of ratios and proportions to solve their problems.
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Ratio and Proportions
Learners explore the means and extremes of a proportion, the how to make a scale drawing.
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Ratio Relationships
Students solve for the different ratio and proportion of a problem. In this geometry lesson plan, students show their knowledge of how to solve proportional relationships. They convert between percent, decimals and fractions.
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How Does a Spring Scale Work?
Students create visuals of the effect of a spring scale. In this algebra lesson, students use the navigator to graph the effects created by a spring scale. They draw conclusion from the graph.
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Proportionality: The X-Plane Generation
Students meet NASA researchers who describe the relationship between force, energy and motion. They discuss how NASA's experimental X-plane is being tested to make space travel more reliable and show how proportionality and ratios are...
Curated OER
Balancing the Scales: Understanding Ratios
Young scholars are introduced to the concept of ratios. In groups, they convert sets of numbers into a ratio. After practicing, they use the ratios and proportions to solve story problems. They also calculate map distances and...
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Landmark Restoration Project-Scale Model Measurements
Young scholars work in cooperative groups to find the actual measurements of an historical building/landmark. Then they use ratio and proportion to figure the measurements that might be used to create a scale model of the structure.
Curated OER
Ratio, Percent, & Proportions
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...
Curated OER
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...
Curated OER
Investigation - The Local Bagel Shop
Sixth graders investigate unit pricing to find which cup of coffee is a better buy. They use ratio and proportions to solve problems involving a change of scale in drawings, maps, recipes, etc. Students determine the unit cost of items...