Effects of Computer-Based Diagrams on Solving Word Problems: A Longitudinal Study

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To examine effects of computer-based diagrams on solving two types of word problems over a one-year period, fifth-grade students were allocated to one of three groups. Students in the training group generated diagrams themselves using a computer and students in the other two groups did not. After having engaged in each activity, students in each group solved ratio word problems three times during a year. They also received a transfer test in the second and final test periods. The results showed that students in the training group outperformed students in the other two groups on solving ratio word problems over a one-year period but that students in the training group solved the transfer test problems as well as students in the other two groups. The computer-based diagrams as an effective cognitive strategy for helping students build mental models of ratio word problems are discussed.

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