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http://dx.doi.org/10.7468/jksmec.2011.14.3.303

An Analysis of a First Grader's Number Sense using the Searching Complement of Ten Game  

Lee, Kyung-Eon (Dept. of Mathematics Education, Jeju National University)
Publication Information
Education of Primary School Mathematics / v.14, no.3, 2011 , pp. 303-316 More about this Journal
Abstract
The purpose of this study was to analyze a first grader's number sense in playing the searching complement of ten game. For this purpose, the researcher conducted the game with a first-year student and analyzed her number sense based on conversations in playing games. The results obtained in this study were as follows: First, the student had a very big interested in the game and it was easily converted into additional situations. Second, she fully understood the rules of the game and made the complement of the given number. However, she was not good at making complement of twelve. Third, she made new rules like using three or four cards. She easily made the number 10 with two cards, but she didn't easily understand how to make 10 with more than three cards.
Keywords
number sense; mathematical game; complement of ten;
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