Headline Story
Addition and Subtraction in Depth, #2
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Introduction
Read the Headline Story to your students. Encourage them to think of creative ways to name solutions. You might make paper squares available, so students can cut and arrange them in different ways.
Headline Story
Each of three squares is cut into two rectangles that are one unit long and half that unit wide. These rectangles are arranged into one large rectangle.
Possible student responses
- You could make a rectangle 6 units long and half a unit wide. Then the area would be 3 square units, and the perimeter would be 13 units.
- The rectangle could be 1 unit long and 3 units wide. Then the area would be 3 square units, and the perimeter would be 8 units.
- No rectangle made with these pieces can have an area other than 3 square units.
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