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# Investigating Area by Folding Paper

Investigating Area by Folding Paper. From Mark Driscoll's Fostering Geometric Thinking. Day 1 5-Minutes. Investigating Area.

## Investigating Area by Folding Paper

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### Presentation Transcript

1. Investigating Area by Folding Paper From Mark Driscoll's Fostering Geometric Thinking • Day 1 • 5-Minutes

2. Investigating Area • For each problem, start with a square sheet of paper and make folds in the sheet of paper to construct a new shape, then explain how you know the shape you constructed has the specified area. • Construct a square with exactly 1/4 the area of the original square. Explain how you know it has 1/4 the area.

3. Investigating Area by Folding Paper From Mark Driscoll's Fostering Geometric Thinking • Day 2 • 5-Minutes

4. Investigating Area • For each problem, start with a square sheet of paper and make folds in the sheet of paper to construct a new shape, then explain how you know the shape you constructed has the specified area. • Construct a triangle with exactly 1/4 the area of the original square. Explain how you know it has 1/4 the area.

5. Investigating Area by Folding Paper From Mark Driscoll's Fostering Geometric Thinking • Day 3 • 5-Minutes

6. Investigating Area • For each problem, start with a square sheet of paper and make folds in the sheet of paper to construct a new shape, then explain how you know the shape you constructed has the specified area. • Construct another triangle with exactly 1/4 the area of the original square that is not congruent to the previous triangle you constructed. Explain how you know it has 1/4 the area.

7. Investigating Area by Folding Paper From Mark Driscoll's Fostering Geometric Thinking • Day 4 • 5-Minutes

8. Investigating Area • For each problem, start with a square sheet of paper and make folds in the sheet of paper to construct a new shape, then explain how you know the shape you constructed has the specified area. • Construct a square with exactly 1/2 the area of the original square. Explain how you know it has 1/2 the area.

9. Investigating Area by Folding Paper From Mark Driscoll's Fostering Geometric Thinking • Day 5 • 5-Minutes

10. Investigating Area • For each problem, start with a square sheet of paper and make folds in the sheet of paper to construct a new shape, then explain how you know the shape you constructed has the specified area. • Construct another square with exactly 1/2 the area of the original square that is located in one of the four corners of the original square. Explain how you know it has 1/2 the area.

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