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Berends, Inez E.; van Lieshout, Ernest C. D. M. – Learning and Instruction, 2009
Arithmetic word problems are often presented accompanied by illustrations. The present study examined how different types of illustrations influence the speed and accuracy of performance of both good (n = 67) and poor arithmeticians (n = 63). Twenty-four arithmetic word problems were presented with four types of illustrations with increasing…
Descriptors: Short Term Memory, Word Problems (Mathematics), Arithmetic, Problem Solving
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Timmermans, Rudolf E.; Van Lieshout, Ernest C. D. M.; Verhoeven, Ludo – Learning and Instruction, 2007
Effects of guided (GI) and direct instruction (DI) in solving subtraction problems for mathematically low performers in regular schools were compared. In the GI condition, self-development of solution procedures was encouraged whereas in the DI condition one prescribed strategy was to be used. Forty children (M[subscript age] = 9.3 years) were…
Descriptors: Subtraction, Constructivism (Learning), Gender Differences, Mathematics Instruction
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Elia, 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