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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
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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