Grade
1

Same & Different: Crazy Caterpillars

Look at the two pictures. What do you notice?

A. shows a green caterpillar with 10 sections and a red caterpillar with 9 sections. Red 9 plus 'question mark' equals green 10. B. shows a green caterpillar with 7 sections and a red caterpillar with 6 sections. Green 7 minus red 6 equals 'question mark.'
  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. Draw a third picture with red and green caterpillars. 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