Grade 3 Mathematics Module 4, Topic C, Overview

Girl in Classroom

In Topic C, students manipulate rectangular arrays to concretely demonstrate the arithmetic properties in anticipation of the following lessons.  They do this by cutting rectangular grids and rearranging the parts into new wholes using the properties to validate that area stays the same, despite the new dimensions.  They apply tiling and multiplication skills to determine all whole number possibilities for the side lengths of rectangles given their areas (3.MD.7b).

Downloadable Resources

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Common Core Learning Standards

CCLS State Standard
3.MD.5 Recognize area as an attribute of plane figures and understand concepts of area measurement.
3.MD.6 Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised...
3.MD.7 Relate area to the operations of multiplication and addition.

Curriculum Map