# Investigating Area by Folding Paper - PowerPoint PPT Presentation

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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.