1. Investigating Area by Folding Paper
Day 1
5-Minutes
From Mark Driscoll's Fostering Geometric Thinking

2. 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.

3. Investigating Area by Folding Paper
Day 2
5-Minutes
From Mark Driscoll's Fostering Geometric Thinking

4. 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.

5. Investigating Area by Folding Paper
Day 3
5-Minutes
From Mark Driscoll's Fostering Geometric Thinking

6. 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.

7. Investigating Area by Folding Paper
Day 4
5-Minutes
From Mark Driscoll's Fostering Geometric Thinking

8. 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.

9. Investigating Area by Folding Paper
Day 5
5-Minutes
From Mark Driscoll's Fostering Geometric Thinking

10. 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.