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

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## Investigating Area by Folding Paper

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**Investigating Area by Folding Paper**From Mark Driscoll's Fostering Geometric Thinking • Day 1 • 5-Minutes**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.**Investigating Area by Folding Paper**From Mark Driscoll's Fostering Geometric Thinking • Day 2 • 5-Minutes**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.**Investigating Area by Folding Paper**From Mark Driscoll's Fostering Geometric Thinking • Day 3 • 5-Minutes**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.**Investigating Area by Folding Paper**From Mark Driscoll's Fostering Geometric Thinking • Day 4 • 5-Minutes**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.**Investigating Area by Folding Paper**From Mark Driscoll's Fostering Geometric Thinking • Day 5 • 5-Minutes**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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