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Analyzing and Restructuring Mathematical Tasks of Length Measurement in Elementary School Mathematics - Focused on 2nd Graders -  

Ku, Miyoung (한국교원대학교 대학원)
Lee, Kwangho (한국교원대학교)
Publication Information
Journal of Elementary Mathematics Education in Korea / v.19, no.3, 2015 , pp. 387-408 More about this Journal
Abstract
The purpose of this research is to analyze the mathematical tasks of length measurement in two different perspectives, the level of cognitive demands and learning trajectories, and restructure the mathematical tasks so that the students' conceptual learning is promoted and students are able to have opportunities to think more broadly. Ten lessons with the restructured mathematical tasks were implemented for a class of 2nd grade elementary students. Also a qualitative and in-depth study was conducted with 4 students of the target group. The study shows that firstly, the restructured tasks requiring high level of cognitive skills, had positive effects in increasing the students' level of thinking and reasoning. Secondly, the tasks modified according to the learning trajectories of Szilag, Clements & Sarama(2013) in length measurement, have proven to promote students' concept learning and elaborate the students' level of thinking.
Keywords
Mathematical tasks; length; learning trajectories; cognitive demands;
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Times Cited By KSCI : 2  (Citation Analysis)
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