Investigating Area by Folding Paper
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Transcript of Investigating Area by Folding Paper
Day 15-Minutes
Investigating Area by Folding Paper
From Mark Driscoll's Fostering Geometric Thinking
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.
Day 25-Minutes
Investigating Area by Folding Paper
From Mark Driscoll's Fostering Geometric Thinking
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.
Day 35-Minutes
Investigating Area by Folding Paper
From Mark Driscoll's Fostering Geometric Thinking
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.
Day 45-Minutes
Investigating Area by Folding Paper
From Mark Driscoll's Fostering Geometric Thinking
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.
Day 55-Minutes
Investigating Area by Folding Paper
From Mark Driscoll's Fostering Geometric Thinking
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.