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Sex Related Differences In Spatial Ability , Mental Imagery And Concept Achievement In Geometry ( Polygon ) amongst Formal Operations Stage Pupils Of Aden Governorate (Yemen )
(
Qatar University
, 1998 , Article)
Numerous authorities of investigators and educationists attracted to the Piagetian theory of cognitive development among children. Most studies were to find out relations of Piaget's Concepts of space and mental
imagery ...