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Scale and Proportion (MS)

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Grade Level Middle School
Location Massachusetts
Time Period
Topic Math and Maps

Overview

Scale is the relationship between distances on a map and the corresponding distance in the real world. Scale can be represented in three different ways: graphically, in an equation form and using a representative fraction. Since scale is a ratio, proportions can be used to scale down actual distances and scale up map distances. For this lesson, students will apply the idea of scale as a ratio to understand proportionality and how to solve problems involving proportions. To strengthen their understanding of proportion, students will graph relationships on the coordinate plane.

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Norman B. Leventhal Map Center (http://maps.bpl.org)