Grade
2

Same & Different: Picturing Problems

Look at the two pictures. What do you notice?

A. shows 3 expressions. Red 7 + red 3 + black 6. Black 7 + green 1 + green 9. Blue 5 + blue 5 + black 8. B. shows 3 expressions. red 10 + black 6. Black 7 + green 10. Blue 10 + black 8.
  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 like the ones above. Use expressions that make 10 or 10 and more. Explain how your picture is the same as pictures A and B, and how it is different.