The analysis of the chemistry lecture content in the 1920s correspondence education textbook "JunghagGanguilog" (1920년대 통신교육 교재 『중학강의록』의 화학강의 내용 분석)
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- Journal of Science Education
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- v.47 no.2
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- pp.167-179
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- 2023
This study analyzes the "JunghagGanguilog (中學講義錄)" published by the JoseonTongsinJunghaggwan(朝鮮通信中學館), a correspondence school in the 1920s, as well as "Mungyoui Joseon (文敎の朝鮮)," "Sinjisig (新知識)," and newspaper articles to examine the situation of science education in correspondence education at that time. The study investigated the effectiveness of science education outside of schools by analyzing the content of chemistry lectures in correspondence education materials and comparing them with Qualification Exam questions. Correspondence education served as a communication channel for individuals in the 1920s who were unable to receive formal schooling and was a valuable educational method for those aiming to pass Qualification Exam for admission to higher-level schools. Due to the similarity between the chemistry lecture content and Qualification Exam questions, learners likely favored correspondence education, leading to higher learning abilities. Therefore, it can be seen that the Korean publication of "JunghagGanguilog" was a significant resource in the science education landscape at that time.
This study investigated fifth graders' understanding of variables from a generalized arithmetic and a functional perspectives of early algebra. Specifically, regarding a generalized perspective, we included the property of 1, the commutative property of addition, the associative property of multiplication, and a problem context with indeterminate quantities. Regarding the functional perspective, we covered additive, multiplicative, squaring, and linear relationships. A total of 246 students from 11 schools participated in this study. The results showed that most students could find specific values for variables and understood that equations involving variables could be rewritten using different symbols. However, they struggled to generalize problem situations involving indeterminate quantities to equations with variables. They also tended to think that variables used in representing the property of 1 and the commutative property of addition could only be natural numbers, and about 25% of the students thought that variables were fixed to a single number. Based on these findings, this paper suggests implications for elementary school students' understanding and teaching of variables.
This research investigated the Revised mathematics curriculum and the National Achievement Test of Japan that advanced by leaps and bounds in PISA 2012. As compared with Korea, Japan shows similar trends in the affective domain and the cognitive domain of international achievement test. To put it concretely, this research compared and analyzed the mathematics contents domain of the 2009 revised mathematics curriculum of Korea and the 2008 revised mathematics curriculum of Japan being applied. The analysis was conducted in many aspects including overall of Japanese mathematics education system, the contents to be covered in each grade, and the methods of essential learning themes. We compared the mathematics contents dealt with each country based on the framework of analysis such as