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How Many Will There Be? Earthworm

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Summary

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

  1. Students begin by predicting how many pieces there will be at step 5.
  2. After revealing that step 5 has 36 pieces, I ask students to predict step 12.
  3. I reveal that step 12 has 85 squares and challenge students to predict any step. Answers: Step 49: 344, Step 93: 652, Step 728: 5,097

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