• Journal of the Korean earth science society
• /
• v.32 no.7
• /
• pp.809-831
• /
• 2011

Sea Surface Temperature (SST) is one of the most important oceanic variables to understand rapidly-changing climate, so that accurate and error-free SST images should be presented in school science textbooks. However, satelliteobserved SST images in the high-school textbooks presented some errors caused by various reasons. This study analyzed 36 satellite images for SST presented in 24 kinds of high-school textbooks (earth science I and II textbooks on the basis of the 7th National Curriculum) for 17 items. This study investigated errors in image processing such as cloud removal, land masking, color bar, geological and time information, and some erroneous expressions related to the fundamental information of satellites. Twenty five pre-service teachers filled out a survey about several problematic satellite images, and their responses were analyzed. As a result, most of the pre-service teachers did not recognize the errors associated with image processing and tended to comprehend the SST errors as real oceanographic phenomena such as sea ice, river outflow, or cold current. Therefore, satellite SST images in the textbooks should be accurately presented by including detailed items suggested in this study.

• Journal of The Korean Association For Science Education
• /
• v.39 no.4
• /
• pp.563-571
• /
• 2019

The purpose of this study is to analyze the safety contents presented in high school science textbooks of the 2015 revised national science curriculum. For these, we found safety contents in the inquiries and appendices of 63 science textbooks: integrated science, science inquiry experiment, physics I, II, chemistry I, II, biology I, II, and earth science I, II. We analyzed these safety contents using six safety factors based on the seven standards for safety education. The main results are as follows: First, 81(46.0%) inquiries among 176 curriculum inquiries contain safety contents, and these contents are mainly found in chemistry textbooks, and the least in 'science inquiry experiment' textbooks. Second, safety contents are found the most in 'laboratory safety rule', followed by 'safety symbol' and 'usage of protection equipment'. Third, the safety contents of appendices are mainly in 'laboratory safety rule' and 'accident treatment'. Based on these results of this study, it is concluded that these textbooks have problems; that there is a big difference in describing safety contents in each textbook; that these safety contents are not presented in detail and that the educational effect is reduced. Furthermore, the safety symbol is not standardized. We also discussed ways to improve the safety contents of science textbooks.

• School Mathematics
• /
• v.18 no.3
• /
• pp.479-501
• /
• 2016

This study was conducted as a learning project for 20 pre-third graders in high school by means of math textbooks, G+, and sample questions from previous CSAT as learning tools for 9 weeks from Dec. 24, 2015. The purpose of the study was to develop 'math textbook project learning(MtPL)', a mixed learning method combined on-line with off-line, and analyze the effects of MtPL on the affective domain of high school students. As a result of the study, it was found that MtPL had positive effects on self-efficacy and self-confidence of students, while the collaborative learning using a textbook and teacher's role worked as instrumental motivation in mathematics learning. The result also implies that the perception of high school students, who think to resolve more difficult math problems to succeed in CSAT, about mathematics learning method has to be modified. Furthermore, it is shown that the preparation of CSAT by utilizing textbook and the use of textbook in math learning have been worked positively for the students.

• Journal of the Korean Chemical Society
• /
• v.49 no.1
• /
• pp.105-111
• /
• 2005

• Journal of the Korean Chemical Society
• /
• v.49 no.1
• /
• pp.96-104
• /
• 2005

• Journal for History of Mathematics
• /
• v.31 no.5
• /
• pp.235-250
• /
• 2018

The history of mathematics is an important part of Chinese highschool mathematics curriculum. The current 2003 revised curriculum in China refers directly to the history of mathematics and presents it as one of the optional series. Moreover, they publish separate history textbooks for mathematics according to the 2003 revised curriculum. The importance of the history of mathematics in Chinese highschool curriculum, which was revised in 2017, has increased. This study aims to analyze the contents of the highschool curriculum and mathematics history textbooks, which were revised in 2003. Based on the results of analysis, we make suggestions on the use of mathematics history for teaching mathematics in Korea.

• The Mathematical Education
• /
• v.53 no.1
• /
• pp.41-55
• /
• 2014

In recent years, there has been increasing interest in the pedagogical importance of counter-examples that contradict statements about mathematics education research and the curriculum revision process for high school mathematics courses. Using a literature research method, this study analyzed views about counter-examples according to a method of approach to statements and the classification of counter-examples and their criteria. The study also described the learnability of the content of counter-examples presented in Korean secondary school mathematics textbooks. The results showed that generating many counter-examples enables learners to understand mathematical concepts exactly, construct links between mathematical contents, and have flexible thoughts about mathematical objects. Considering the learnability of counter-examples, the contents of counter-examples in school mathematics textbooks are needed for mathematics teachers and students to generate numerous counter-examples and verify the justification of generating counter-examples in various manners.

• The Journal of the Korea Contents Association
• /
• v.21 no.8
• /
• pp.201-212
• /
• 2021

Curriculum content interest has been studied in terms of teachers rather than students in ways that help revise curriculum and develop textbooks. In this study, 227 first-year high school students were interested in what they learned in middle school and what they learned in high school, focusing on meaningful assumptions and contents for middle school and high school students. We analyze this difference in interest by gender and achievement level. According to the research results, first-year high school students, who are in the middle and high school transition period, have relatively high interest in themselves, such as youth development, compared to family needs or interest in family life. There were no gender differences, but there were differences in content interest depending on the level of achievement. This means that the content interest should be interpreted by considering various variables such as the development of learners, the situation of learners in the school-level transition period, and the entrance examination of universities. The results of this study will provide implications for future curriculum revisions, textbook development, and curriculum considerations, and will need to be carefully analyzed and utilized based on a learner-centered perspective.

• Journal of the Korean Chemical Society
• /
• v.44 no.1
• /
• pp.74-80
• /
• 2000

The purpose of this study is to analyze comparatively and improve the preparation of chlorine gas in the high school chemistry II textbooks on the basis of the revised curriculum. From the results of the preparation experiment of chlorine gas which is commonly dealing with 9 kinds of textbook in the nation, we have found some problems and have suggested the solution of these problems. The problem is the students may inhale the chlorine gas that is to be injurious on the human body, so the research is focused on safe experimental method without inhalation of chlorine gas. The simple conviction method of character in laboratory is to propose at 5 kinds.

• The Bulletin of The Korean Astronomical Society
• /
• v.32 no.2
• /
• pp.38.1-38.1
• /
• 2007