Same & Different: Bracelets & Sunglasses

Look at the two pictures. What do you notice?

A. shows 4 colorful bracelets and a ruler. Each bracelet measures 3 inches. B. shows 2 pairs of blue sunglasses and a ruler. Each pair of sunglasses measures 6 inches.
  1. How are pictures A and B mathematically the same, and how are they different?
    • A and B are the same because …
    • A and B are different because …
  2. Make a third picture that shows something measured with a ruler. Explain how your picture is the same as pictures A and B, and how it is different.