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# Investigating area-folding-paper

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Fostering Algebraic Thinking in Five Minutes a Day!

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### Investigating area-folding-paper

1. 1. Investigating Area by Folding Paper Day 1 5-MinutesFrom Mark Driscolls Fostering Geometric Thinking
2. 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. 3. Investigating Area by Folding Paper Day 2 5-MinutesFrom Mark Driscolls Fostering Geometric Thinking
4. 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. 5. Investigating Area by Folding Paper Day 3 5-MinutesFrom Mark Driscolls Fostering Geometric Thinking
6. 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. 7. Investigating Area by Folding Paper Day 4 5-MinutesFrom Mark Driscolls Fostering Geometric Thinking
8. 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. 9. Investigating Area by Folding Paper Day 5 5-MinutesFrom Mark Driscolls Fostering Geometric Thinking
10. 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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