Same & Different: Pizza Party

Look at the two pictures. What do you notice?

A: a round pizza cut into 3 equal pieces. B: a square pizza cut into 4 equal pieces. 1 piece is missing.
  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 a pizza cut into pieces. Explain how your picture is the same as pictures A and B, and how it is different.