Multiplication and Rectangles
Est. Class Sessions: 3Extensions
- Prime Numbers. Ask students to use tiles to investigate the factors of the numbers 1 to 50 and to identify the prime numbers. You might want to assign a different set of numbers to each group so their findings can be combined into a comprehensive class list.
- Square Numbers. Ask students to make a list of square numbers: 0, 1, 4, 9, 16, 25, 36, 49, etc. Then ask them to subtract consecutive square numbers and to make a list of the differences. The first few numbers in the list of differences are 1 (1 − 0), 3 (4 − 1), and 5 (9 − 4). See Figure 8.
Pose questions like these:
