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Direct linkPetersen, Lori A.; McNeil, Nicole M. – Child Development, 2013
Educators often use concrete objects to help children understand mathematics concepts. However, findings on the effectiveness of concrete objects are mixed. The present study examined how two factors--perceptual richness and established knowledge of the objects--combine to influence children's counting performance. In two experiments, preschoolers…
Descriptors: Preschool Children, Manipulative Materials, Computation, Knowledge Level
