• Journal of Elementary Mathematics Education in Korea
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• v.20 no.2
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• pp.215-238
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• 2016

The 2015 national revised curriculum was notified officially the last year. The intent and direction of the revision caused more or less change for mathematical contents to be taught and is expected to cause a considerable change in math class. In the level of elementary school mathematics, it turned that several contents were deleted or moved to the upper grades because the revision focused especially both on reducing students' burden of learning and on fostering the mathematical key competences. This study aims to examine the relevance of the change through investigation of the national curriculums for elementary school mathematics since 1946. The mathematical contents to be analyzed in this study were mixed calculation of natural numbers, mixed calculation of fractions and decimal fractions, position and direction of objects, are/hectare and ton, the range of numbers and estimating, surface and volume of cylinders, pattern and correspondence, and direct/inverse proportionality, which were changed in any aspect relative to 2009 national revised curriculum. Based on the results of these analyses, the discussion will provide some suggestions for setting the direction of elementary mathematics curriculum.

• Journal of Elementary Mathematics Education in Korea
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• v.19 no.2
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• pp.231-250
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• 2015

The objective of this study is to analyze the effects 6th grade mathematics lessons applying story making have on the mathematics achievement and attitude toward mathematics. For this study, using two examination devices for measuring mathematical attitudes and mathematics learning achievement, a pre-test and post-test were conducted. In the pre-test, it was found that the two groups are identical groups. The post-test was used for verifying the research problems and the results of post-test were analyzed using t-test. The findings of this study are below. First, lessons applying story making influenced the mathematics achievement of children. This implies that lessons applying story making are more effective for improving a mathematics achievement than a general teaching and learning method. Also, when carrying out the t-test of pre-test and post-test results of learning achievement in experimental groups, there was a significant change as well. It is therefore supposed that lessons applying story making have positive effect on the mathematics achievement of children. Second, lessons applying story making influenced the mathematical attitudes of children. This implies that the lessons are more effective for improving mathematical attitude than a general teaching and learning method. Also, when carrying out the t-test of pre-test and post-test results of mathematical attitudes in experimental groups, there was a significant change as well. It is therefore supposed that lessons applying story making have positive effect on mathematical attitudes of children. From the results, it was found that mathematics lessons applying story making can be used to change the mathematics achievement and mathematical attitudes of students positively.

• Journal of Educational Research in Mathematics
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• v.26 no.1
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• pp.63-77
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• 2016

SENKs (Students who Emigrated from North Korea to South Korea) are exposed to the general problem of Su-Po-Ja(mathematics give-uppers) as well as their own difficulty in learning mathematics. In this study, we conducted the FGI (focus group interview) in order to examine the recognition on mathematics teaching and learning in South Korea with 6 SENKs and 3 teachers who teach the SENKs. As a result, it was found that SENKs' had difficulties in understanding math because of the differences in math terminology used in South and that in North Korea, the unfamiliar problem situation used in math lesson, and the shortage of time for solving math problem. And the teachers reported that they had difficulties in teaching great deal of basic math, SENKs' weak will to learn math, and SENKs' lack of understanding about problem situation because of the inexperience about culture and society in South Korea.