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Baksalary, Oskar Maria; Trenkler, Gotz – International Journal of Mathematical Education in Science and Technology, 2010
By considering a general representation of proper rotation matrices, the eigenvalues and eigenspaces of those matrices are identified.
Descriptors: Matrices, Algebra, Factor Analysis, Spatial Ability
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Demetriou, Andreas; Kazi, Smaragda – Intelligence, 2006
This article presents three studies that were designed to map the dimensions involved in "g," with an emphasis of the place of self-awareness in it. The first study involved preschoolers from 3 to 7 years of age. These were examined in three domains (spatial, quantitative and categorical reasoning) with both actual tasks and tasks addressed to the…
Descriptors: Cognitive Processes, Thinking Skills, Preschool Children, Spatial Ability