Investigating Area by Folding Paper

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# Investigating Area by Folding Paper - PowerPoint PPT Presentation

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

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.