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asdfkla asdfkla
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6 years ago
A child sorts all of his blocks into piles according to color. The red blocks are in one pile, the
  blue blocks are in a second pile, and so on. The child has mastered
 
  a) Reversibility
  b) Conservation
  c) Classification
  d) Combination
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jrodriguez16jrodriguez16
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6 years ago
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asdfkla Author
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6 years ago
Easily the best answer Grinning Face with Smiling Eyes
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