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Gal, Hagar; Linchevski, Liora – Educational Studies in Mathematics, 2010
In this paper, we consider theories about processes of visual perception and perception-based knowledge representation (VPR) in order to explain difficulties encountered in figural processing in junior high school geometry tasks. In order to analyze such difficulties, we take advantage of the following perspectives of VPR: (1) Perceptual…
Descriptors: Knowledge Representation, Visual Perception, Cognitive Processes, Geometry
Peer reviewed
Linchevski, Liora; Herscovics, Nicolas – Educational Studies in Mathematics, 1996
Reports the results of a teaching experiment involving like terms and equations in algebra. Seventh-grade students (n=6) experienced difficulties in decomposing an additive term into a difference. (Author/MKR)
Descriptors: Algebra, Concept Formation, Equations (Mathematics), Grade 7
Peer reviewed
Herscovics, Nicolas; Linchevski, Liora – Educational Studies in Mathematics, 1994
Investigated the upper limits of (n=22) seventh-grade students' informal processes in solving first degree equations in one unknown prior to instruction. Results indicated the existence of a cognitive gap between arithmetic and algebra characterized as the students' inability to operate spontaneously with or on the unknown. (37 references)…
Descriptors: Algebra, Arithmetic, Cognitive Development, Cognitive Structures
Peer reviewed
Linchevski, Liora; Livneh, Drora – Educational Studies in Mathematics, 1999
Interviews 53 sixth grade students individually in an attempt to discover whether wrong interpretations of the algebraic structure found in an algebraic context occurs in a purely numerical context. Concludes that students' difficulties with the algebraic structure were also found in purely numerical contexts. (Contains 27 references.) (Author/ASK)
Descriptors: Algebra, Arithmetic, Computation, Foreign Countries
Peer reviewed
Linchevski, Liora; Williams, Julian – Educational Studies in Mathematics, 1999
Reports on an instructional method designed to address the cognitive gaps in children's mathematical development where operational conceptions give rise to structural conceptions. Describes two experiments in teaching integers and conceptualizes modeling as the transformation of outside-school knowledge into school mathematics. (Contains 28…
Descriptors: Educational Games, Elementary Education, Intuition, Mathematical Models