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Peer reviewedHerscovics, 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
