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.

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Investigating Area by Folding Paper

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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

  • 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 paper1

Investigating Area by Folding Paper

From Mark Driscoll's Fostering Geometric Thinking

  • Day 2

  • 5-Minutes


Investigating area1

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 paper2

Investigating Area by Folding Paper

From Mark Driscoll's Fostering Geometric Thinking

  • Day 3

  • 5-Minutes


Investigating area2

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 paper3

Investigating Area by Folding Paper

From Mark Driscoll's Fostering Geometric Thinking

  • Day 4

  • 5-Minutes


Investigating area3

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 paper4

Investigating Area by Folding Paper

From Mark Driscoll's Fostering Geometric Thinking

  • Day 5

  • 5-Minutes


Investigating area4

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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