Block Play!

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Across
  1. 4. a step in block play development
  2. 7. author of the art of block building
  3. 8. guided and structured conditions lead to
  4. 12. a cognitive skill developed by block play
  5. 15. a physics skill gained by block play
  6. 16. brick sets that click together
Down
  1. 1. a mathematics skill gained by block play
  2. 2. children do little or no building
  3. 3. another characteristic of blocks
  4. 5. better than manipulatives
  5. 6. a characteristic of blocks
  6. 9. whose coop did we build this week?
  7. 10. 3D magnetic building set
  8. 11. lead researcher behind the shrinking room
  9. 13. final stage of block play
  10. 14. represents advanced block play