Grade
2

Same & Different: Counting Sequences

Look at the two pictures. What do you notice?

A. shows numbers in blue. 30, 40, 50, 60, 70, 80, 90, 100. B. shows numbers in two colors. Blue 100, red 95, blue 90, red 85, blue 80, red 75, blue 70, red 65.
  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 counting sequence. Explain how your picture is the same as pictures A and B, and how it is different.


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Reference for Educators

Sample problems and solutions