• East Asian mathematical journal
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• v.29 no.4
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• pp.355-392
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• 2013

Generally school algebra is to start with introducing variables and algebraic expressions, which have major cognitive obstacles to students in the transfer from arithmetic to algebra. But the recent studies in the teaching school algebra argue the algebraic thinking from an early algebraic point of view. We compare the Korean elementary mathematics textbooks with Americans from this perspective. First, we discuss the history of school algebra in the school curriculum. And Second, we investigate the recent studies in relation to early algebra. We clarify the goals of this study(the importance of early algebra in the elementary school) through these discussions. Next we examine closely the number sense in the arithmetic and the symbol sense in the algebra. And we conclude that the operation sense can connect these senses within early algebra using the algebraic thinking. Finally, we compare the elementary mathematics books between Korean and American according to the components of the operation sense. In this comparative study, we identify a possibility of teaching algebraic thinking in the elementary mathematics and early algebra can be introduced to the elementary mathematics textbooks from aspects of the operation sense.

• Journal of the Korean Chemical Society
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• v.65 no.5
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• pp.382-396
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• 2021

This study analyzed illustrations presented in middle school science 14 paper textbooks and 14 digital textbooks under the 2015 revised curriculum in terms of gender stereotypes. In both paper and digital textbooks, the most common type of illustration was multiple pupils. For pupils, the frequency of gender was balanced in both paper and digital textbooks. However, there were differences among publishers in digital textbooks. In both paper and digital textbooks, girls showed a higher frequency than boys in learning activities. However, the opposite tendency was observed in non-learning activities. In particular, non-learning activities of digital textbooks showed gender imbalance among all publishers. In both paper and digital textbooks, behavioral characteristics were mostly described to be active without gender differences. But, there were differences among publishers in digital textbooks. For adults, men showed a higher frequency than women in both paper and digital textbooks. Gender frequency was balanced in family activities, however, men showed a higher frequency in social activities. Unlike paper textbooks, digital textbooks were gender balanced in occupational activities. In both paper and digital textbooks, the number of occupations in which men appeared more frequently was higher than that in which women appeared more frequently. Especially, men showed a higher frequency than women in both scientist and researcher. Behavioral characteristics were mostly biased in terms of gender in both paper and digital textbooks.

• Communications of Mathematical Education
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• v.36 no.4
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• pp.559-587
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• 2022

The purpose of this study is to derive implications for the development of the next curriculum and textbooks by comparing and analyzing the textbooks of the 2015 revised high school mathematics curriculum <Mathematics for Economics> and social studies curriculum <Economics>. In the <Mathematics for Economics> textbooks, economic terms and function notations should be introduced. Additionally, the use of graphs for economic-related functions is different from the use of graphs in mathematics in the <Mathematics for Economics> textbooks. For these reasons, the usage of economic terms, function notations, and function graphs covered in the <Mathematics for Economics> textbooks were compared and analyzed with the usage in the <Economics> textbooks. In the <Mathematics for Economics> textbooks, economic terms that are highly related to mathematics are defined and presented. Contrary to the conventions of mathematics and economics, the function notations in the <Mathematics for Economics> textbooks were used inconsistently because uppercase and lowercase letters were mixed in the function notations. Function graphs in the <Mathematics for Economics> textbooks had differences in the range of values represented by the variables regarding axes and scaling. The <Mathematics for Economics> textbooks did not provide a mathematical interpretation of the translation or slope. In the course of <Mathematics for Economics>, it is necessary to specify considerations for teaching and learning, and assessment in the curriculum to promote students' understanding of mathematics and economics. The descriptions in the curriculum document and textbooks of <Mathematics for Economics> should be supplemented to provide learning opportunities for mathematical interpretation of economics-related contents.

• School Mathematics
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• v.13 no.2
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• pp.323-343
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• 2011

The study of 2011 education course revision proposal suggests that middle school level function shall be taught with emphasis on its role as tool to understand the situations of actual world, and the concept shall be extended in high school into formularized setting that integrate various fields based on middle school function. In revising education course, the circumstances of other countries are desired to be considered to keep abreast of international standard education courses. In this study, the textbooks of Gesamtschule a general school a school type similar to the education system in Korea among various school forms of Germany were selected to look into the characteristics of function introduction and teaching & learning in Germany, and the textbooks were compared and analyzed with those of Korea. As a result of comparison and analysis on the system and contents with emphasis on function area, German textbooks differed from the 7th revised education course on the introduction of function concept, contents development method and method of instructing on graph etc. Such differences are anticipated to serve as data for reference in the development of revised education courses and textbooks in Korea.

• Journal of Korean Home Economics Education Association
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• v.23 no.1
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• pp.19-36
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• 2011

The purpose of this paper was to explore the teaching materials in the Korean and Japanese high school Home Economics textbooks from the perspective of green life education. Although sustainable living at home has been emphasized as one of the main issues of Home Economics since the first curriculum period, green growth education has reinforced in the 2009 revised curriculum. The content analyses had been done to explore the teaching materials of five areas in the 6 Korean and 4 Japanese high school Home Economics textbooks through two checking steps. The material form of table-figure-pictures was the most frequently shown in both Korean and Japanese textbooks. Green life-teaching materials were more likely in the area of household management/consumer activity than in any other ones. All textbooks of both countries have included the green life-teaching materials according to the elements of contents mentioned in the curricula. The quantity and contents of the materials were some what differ by textbooks, so home economics teacher need to cross check the all textbooks to select useful information although the textbooks have included various types of green materials over the 5 areas. Home Economics curriculum need to actively and concretely include the green growth educational elements suggested by the previous study.

• Journal of the Korean Chemical Society
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• v.50 no.2
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• pp.153-162
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• 2006

The purpose of this study was to analyze the STS (science-technology-society) contents in chemistry chapters of middle school science textbooks standardized by 7th national curriculum, and to investigate chemistry teachers' perception of STS education. This study was based on 8 essential elements in STS education suggested by Yager and 9 activities in SATIS (science and technology in society). The questionnaire and interview were used to investigate chemistry teachers' perception. As a result of this study, the average value of the STS contents in chemistry chapters of 7 kinds of middle school science textbooks was 22.4%, and the STS contents were preponderated to essential elements of science application and local and community relevance. And STS contents showed that science 2 textbooks were the most of all and in order of science 1 textbooks and science 3 textbooks. As a result of analysis by activities in SATIS, most activities were practice activity, problem-solving and decision making, and structured discussion. Chemistry teachers' perceptions of STS education were following. There were many responses that STS education was necessary for educational efficiency. On the other hand STS education was unnecessary because there were few effective teaching-learning method related with STS education. From these results, middle school science textbooks have to be complemented because 2 essential elements of the STS contents were preponderated in the science textbooks. And the teaching-learning method connected with STS education will have to be developed for the efficiency of STS education.

• Journal for History of Mathematics
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• v.28 no.1
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• pp.15-29
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• 2015

This study aims to analyze how the history of mathematics is used in Chinese mathematics textbooks. As a framework for analysis, we categorized nine types of using the history of mathematics in textbooks. We analyzed 18 mathematics textbooks for Chinese elementary and middle schools. As a result, we found that various types of using the history of mathematics were adopted in Chinese textbooks except for explorations of mathematical errors in history. We also noticed three characteristics: preference to using for motivation and reading matters in elementary school levels, high frequencies of using problems from traditional mathematical books and origins of mathematical concepts or symbols, and emphasis on ethnic superiority through the Chinese traditional mathematics. Based on the results of analysis, we discussed and induced some implications for using the history in our mathematics textbooks.

• Journal of the Korean Society of Earth Science Education
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• v.5 no.1
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• pp.68-74
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• 2012

The focus of this study was on the comparative analysis in the area of illustrations between the primary school from third grade to the sixth grade between Korean and American science textbooks in order to offer some suggestions for consideration of the Korean science textbooks, which will be revised in 2009. The results are as follows: The number of illustrations per page in Korean science textbooks are more than that of American science textbooks. As the type of illustrations, the ratio of photos is the highest and as the role of illustrations, data provision has the highest percentage in both countries. The motivation role in Korean science textbooks seem to be higher than American science textbook, whereas study summary role is more prominent in American textbooks than in Korean textbooks.

• Education of Primary School Mathematics
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• v.21 no.3
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• pp.289-307
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• 2018

Although mixed calculation of natural numbers is important in that it completes arithmetic calculation of natural numbers in elementary school, few studies have been conducted regarding its instruction methods. Given this, this study analyzed Korean mathematics textbooks (from the fifth textbooks to the 2009 revised textbooks) along with Japanese and Singaporean textbooks in terms of the parentheses and the order of operations regarding mixed calculation of natural numbers. The results of this study showed that there were differences in introducing the parentheses and representing them in an explicit way per textbooks. In the Korean textbooks, the order of operations was presented mostly with the real-life contexts but it was not always in a diagrammatic representation. In contrast, in the Singaporean textbooks, the order of operations was presented without the real-life contexts and the use of calculators was emphasized. In the Japanese textbooks, the order of operations was presented with the real-life contexts and a hierarchy of operations was emphasized. Based on these results, this study suggested several implications of textbook development and instructional methods regarding mixed calculations of natural numbers.

• Journal of Family Resource Management and Policy Review
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• v.10 no.2
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• pp.19-42
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• 2006

The purpose of this study is to analyze the changes in contents of home management part in the home economics textbooks fur middle school from the 1st to the 7th curriculum period. The contents in the all of home economics textbooks published in every curriculum period are analyzed. The major findings of this study are as follows: 1. The part of home management is divided into seven specific areas including 'definition and process of home management', 'utilization of family resource and environment management', 'time management', 'household labor/work nanagement', 'family financial management', 'purchasing', and 'consumer protection'. 2. From the 6th curriculum period, the area of 'definition and process of home management' begun to be explained using system's approach and the area of 'household labor/work management' changed its' focus from household to self management. 3. The areas emphasized in the beginning of curriculum period were 'family financial management' and 'household labor/work management'. The 'consumer protection' ' and 'utilization of family resource and environment management' were the areas emphasized in the later curriculum period. 4. The contents of 'family financial management' area have changed very little, however, the contents of 'purchasing' area have changed a lot during the all curriculum periods. 5. The contents of illustrations, tables, pictures, and activities have changed according to changes of the contents of the textbooks.