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Direct linkElia, Iliada; Gagatsis, Athanasios; Demetriou, Andreas – Learning and Instruction, 2007
This study investigated the role of different modes of representation, i.e., verbal description, decorative pictures, informational pictures and number line, in solving additive change problems. Data were collected from 1447 students in Grades 1, 2, and 3. Structural equations modelling affirmed the existence of four first-order…
Descriptors: Rating Scales, Grade 1, Mathematics Instruction, Problem Solving
