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Download full textOrrantia, Josetxu; Múñez, David; San Romualdo, Sara; Verschaffel, Lieven – Psicologica: International Journal of Methodology and Experimental Psychology, 2015
Adults' simple arithmetic performance is more efficient when operands are presented in Arabic digit (3 + 5) than in number word (three + five) formats. An explanation provided is that visual familiarity with digits is higher respect to number words. However, most studies have been limited to single-digit addition and multiplication problems. In…
Descriptors: Mathematics Instruction, Arithmetic, Word Problems (Mathematics), Problem Solving
Direct linkPeters, Greet; De Smedt, Bert; Torbeyns, Joke; Ghesquiere, Pol; Verschaffel, Lieven – Educational Studies in Mathematics, 2012
Subtractions of the type M - S = ? can be solved by various strategies, including subtraction by addition. In this study, we investigated children's use of subtraction by addition by means of reaction time analyses. We presented 106 third to sixth graders with 32 large non-tie single-digit problems in both subtraction (12 - 9 = .) and addition…
Descriptors: Reaction Time, Grade 6, Addition, Subtraction
Peer reviewedDeCorte, Erik; Verschaffel, Lieven – Journal of Educational Psychology, 1981
Using error analysis and individual interviews, the problem-solving actions of first and second graders were analyzed. Shortcomings of children's knowledge and solution strategies were seen to be overcome by instruction. A control group, with usual arithmetic instruction, and an experimental group were established and the hypothesized…
Descriptors: Addition, Arithmetic, Cognitive Processes, Foreign Countries
