Examlex
An experimenter presents a child with two identical balls of clay.The experimenter rolls one of the balls into a long,thin piece of clay.The child is then asked if there is more clay in the ball or in the long, thin piece.This Piagetian task is a test to see if the child is capable of ________ operations.
Direct Materials
Raw materials that can be directly traced to the production of a specific product.
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