No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Sand and water table play UCA

Sand and water table play UCA

collection of objects in the sand table, such as bones, shells, rocks, acorns, fossils, and rubber dinosaurs. After students extracted the artifacts, they sorted the objects—without prompting from their teacher—into stacks that they described as "things that go together." White wrote the names of .

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