Journal of Educational Research in Mathematics (대한수학교육학회지:수학교육학연구)
- Volume 18 Issue 4
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- Pages.483-497
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- 2008
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- 2288-7733(pISSN)
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- 2288-8357(eISSN)
A Child's Informal Knowledge of Multiplication
(두 자리 수)${\times}$ (두 자리 수) 해결과정에서 나타나는 아동의 비형식적인 지식에 관한 사례연구
- Jeon, Hyung-Og (Gradyate School of Korea National University of Education) ;
- Lee, Kyung-Hwa (Seoul National University)
- Published : 2008.11.30
Abstract
This study investigated what kind of informal knowledge is emergent and what role informal knowledge play in process of solving 2-digit by 2-digit multiplication task. The data come from 4 times interviews with a 3th grade student who had not yet received regular school education regarding 2-digit by 2-digit multiplication. And the data involves the student's activity paper, the characteristics of action and the clue of thinking process. Findings from these interviews clarify the child's informal knowledge to modeling strategy, doubling strategy, distributive property, associative property. The child formed informal knowledge to justify and modify her conjecture of the algorithm.
본 연구에서는 (두 자리 수)