In this video clip, Oliver is stacking large wooden frames that can be securely fitted together by placing the legs of one frame into the notches in another frame.
Oto has covered herself with leaves. Logan and Cayetano come over to see what she is doing.
When children solve a jigsaw puzzle they use various strategies to improve their “hit rate”, finding pieces that fit the appropriate spaces.
Two four-year-old boys are working with a balance and a collection of gourds. Tyler explains, “We're trying to get this to go this way, and this one's too heavy.”
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