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http://dx.doi.org/10.7468/jksmee.2017.31.1.85

Difficulty of understanding and using the number line by Elementary school students  

Kim, Yang Gwon (Solgae Elementary School)
Hong, Jin-Kon (Konkuk University)
Publication Information
Communications of Mathematical Education / v.31, no.1, 2017 , pp. 85-101 More about this Journal
Abstract
The purpose of this study is to investigate how elementary school students understand and use the number line relating number concept and what is the main problem in the learning process. For the efficient achievement of this purpose, we investigated how the number line metaphor is related to the number concept and considered the role of the number line on Freudenthal's number concept teaching theory. The test conducted to find the degree of understanding and difficulty on using the number line by actual elementary school students consisted of two questions ; to find appropriate number corresponding to the given number on the number line and to identify contents of chapters about the use of number line on each grade. It was found that many students couldn't solve the problem represented by the number line though they could solve the problem represented by other ways such as number track and pictures. The only difference between the two problems was the way of representation, and they had same contents and structure. This study tried to figure out the meaning of this phenomenon. Also, by using various teaching-learning method (number track, pictures, empty number line, and double number line etc.), this study was aimed to provide the way to help learning 'related number concept' and to solve the difficulty on understanding the number line.
Keywords
metaphorical concepts; numeracy concept; number systems; number line;
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Times Cited By KSCI : 1  (Citation Analysis)
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