This video features a third grade lesson designed to support students as they make sense of area and consider ways of calculating it. Students share different strategies and engage in a classroom discussion, surfacing a foundational definition of area (the amount of space inside a shape) and different ways of determining the area of a shape.

A document outlining the planning team’s research theme, background and research on the content and standards, unit/lesson goals, and unit/lesson plan accompanies the video.