• Journal of Educational Research in Mathematics
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• v.24 no.4
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• pp.623-644
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• 2014

Many researchers have supported in various aspects that elementary students should experience alternative algorithms as well as formal standard one for addition and subtraction. Korean elementary mathematics textbooks have some units for alternative algorithms for addition and subtraction. In special, the change of unit sequence in the second grade revised mathematics textbooks may cause the necessity for discussion about teaching sequence and teaching purpose between alternative algorithms and formal standard one. Therefore, this study aims to consider the purpose of teaching alternative algorithms and to induce implications for their teaching strategies and sequence. To do this, related references, curriculum and textbooks were analyzed. Four lessons were observed and three teachers were interviewed. The main content of this study is the result of analysis on students' activities and teachers'teaching approaches. This study also includes didactical implications based on the result.

• Journal of Korean Elementary Science Education
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• v.28 no.1
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• pp.79-92
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• 2009

The purpose of this study was to investigate elementary school teachers', students' and their parents' perceptions of new experimental grade $3{\sim}4$ science textbooks and teacher's guides developed by revised national science curriculum. 63 teachers, 436 students and their 448 parents were selected from 9 elementary schools selected as model schools, and were administered the questionnaires of the perceptions of the new science textbooks and/or teacher's guides. The results revealed that many teachers had a rather positive perception of the teacher's guides. In addition, most of the teachers, students and their parents, especially the students and their parents than the teachers, perceived positively the new science textbooks. They also had various views of the strengths and weaknesses of the new science textbooks and/or teacher's guides upon cognitive and motivational/emotional/affective aspects. Educational implications of these findings are discussed.

• Journal of Korean Elementary Science Education
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• v.28 no.1
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• pp.35-45
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• 2009

We analyzed $3^{rd}$ graders' images of scientists and science learning students. We chose $3^{rd}$ graders because this is the time when children first encounter formal science learning opportunities. Draw-A-Scientist-Test (DAST) and the revised Draw-A-Scientist-Test Checklist (DAST-C) were used to analyze students' images of scientists, whereas Drawing-A-Science-Learner- and a checklist were used to analyze students' images of science learning students. We found that $3^{rd}$ graders showed common features of scientists who wore laboratory coats but not wearing glasses, goggles or masks and smiling. While most boys drew a male scientist, about a half of girls drew female scientists. Old and weird looking images of scientists that were typically known in other literatures were not found in this study. Science learning students were not wearing lab coasts, glasses, goggles, nor masks. Most of those students were conducting chemistry related experiments, which seemed to be influenced by the $3^{rd}$ grade's science curriculum. We also found relationships among components of images of scientists and science learning students. Although $3^{rd}$ graders' images of scientists and science learning students showed common features, this typical image was not the same as the previous studies have reported. This implies that the images of scientists and science learning students have not yet fixed by $3^{rd}$ grade. Thus, this seems to be a critical time when children start developing images of scientists. Children's direct experiences in the science classroom along with environmental factors such as media exposures can influence their formation of images of scientists and science learning students.

• Journal of Sericultural and Entomological Science
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• v.53 no.1
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• pp.29-37
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• 2015

Since based on the revised educational curriculum, the insects and spiders in eight biology textbooks I and II of high school are as follows. In class level, two classes, Insecta and Arachnida were investigated and their frequence numbers in the textbooks were a total of 143 times. In order level, 12 orders in insecta, 2 orders in Aranea were appeared in the textbooks. The most appearing frequence number was represented in Lepidoptera (33 times) and then in Araneae (11 times). For each publisher, the most appearing frequencies of insecta and spiders was shown in Gyohaksa (23 times), and then in Hyeongseol and Centurla education research institute (21times, respectively). In the textbooks, four species were found to misidentify in their species name and five mistakes were investigated in their photos and content.

• Journal of The Korean Association of Information Education
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• v.13 no.4
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• pp.461-470
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• 2009

Even though the revised operational guide for ICT education emphasizes the basic concepts of computer science, many primary and secondary schools do not deal with the changed requirements properly. Also, it is doubtful if the education considers teaching period and the levels of students or not. In this paper, we survey on the state of ICT education, the relationship between ICT education and Computer Education, and the connectivity in Computer Education between primary and secondary schools. In order to do these, we analyze the result of our questionnaire and we propose an improved method for the connectivity in Computer Education. The results are (i) primary school teachers don't consider the connectivity of Computer Education and (ii) the teachers who have higher satisfaction levels of ICT education think ICT education and Computer Education between two schools are correlated and connected. As a result, new policies to re-educate teachers are required.

• Journal of Elementary Mathematics Education in Korea
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• v.20 no.3
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• pp.499-519
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• 2016

This study analyzed the statistics contents in elementary mathematics textbooks in terms of an information-processing capacity, which is one of the math competencies emphasized by the 2015 revised mathematics curriculum. The findings of this study showed that the activities of 'summarizing and analyzing data or information' far outnumbered 'collecting data or information', 'interpreting and utilizing information', and 'using technological instruments or manipulative materials'. Lessons of collecting data or information were mostly present in the textbooks of lower grade-levels, where the range of data collection was narrow, and lacked adequate exploration of data collecting methods. Some lessons on utilizing information were not based on the interpretation of data, and using technological instruments or manipulative materials was merely introduced in teachers' manual and hardly introduced in the actual textbooks. Based on these findings, this study sought to suggest implications regarding the development of statistics contents in elementary mathematics textbooks in a manner to improve students' information processing capabilities.

• Journal of Engineering Education Research
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• v.14 no.3
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• pp.15-24
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• 2011

The purpose of this study is to develop the 'Engineering Team Mission Project Education Program and Textbook', which is improved creativity and creative problem for Juniors(middle school students) that is in the growth stage to become the leading role in future society. This can be applied the creative experience activities time of revised curriculum in 2009 being implemented to secondary education by 2011. The results of this study are as follows. The formation of Team Mission Project Education Program is the big field 2 project, lower field 8 module and 38 total lessons. This education program has secured the validity of the SME(Subject Matter Expert) expert conference. Actually, by putting the education program and textbook to the invention talent class formed by middle school students and by normally analyzing, it has been analyzed as very satisfying result. Therefore, the "Engineering Team Mission Project Education Program and Textbook" can be provided as a practical education course of new talent training and engineering talent model of the nation's knowledge property education. And it can perform as an education program using usefully in the creative experience activity education course in middle class education stage. Also, it is concluded to become the basis of engineering design education's high grade education and department of engineering's creative engineering.

• Journal of the Korean Society of Earth Science Education
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• v.8 no.2
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• pp.227-239
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• 2015

The purpose of this study was to see the effects of science classes applying ARCS strategies on motivation of science class as well as scientific attitude of elementary students. For this purpose, 47 elementary students in 2 classes from 5th grade of M elementary school based in P metropolitan city were targeted. One class with 24 students was assigned as experimental group and the other class with 23 students were assigned as control group. The chapter of 'solar system and star' in the curriculum revised in 2009 was taught over 10 classes from mid-April to end of June in 2015. For verification, 10 times science classes applying ARCS strategies were performed on experimental group while 10 times of general science class were performed on control group. The results drawn from this analysis were as below. Firstly, positive relationship was found between motivation of science class and science class applying ARCS strategy among experimental group and this means that science classes applying ARCS strategy stimulate intellectual curiosity of students and improves their attitude by actively promoting research activities. Secondly, there was a positive relationship between scientific attitude and science classes applying ARCS strategy among experimental group. This presents that science classes applying ARCS strategy were effective in improving students' scientific attitude by promoting research activities. Above results show that science classes applying ARCS strategy were highly effective for elementary students.

• Journal of Educational Research in Mathematics
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• v.26 no.3
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• pp.527-542
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• 2016

In the mathematics curriculum that was revised in 2009, statistical literacy is explicitly addressed as a goal and specific objectives are included. However, statistical literacy has not been addressed in the studies on KSAT. This study aimed to draw implications on how to improve KSAT in a sense that statistical literacy could be evaluated instead of testing typical facts or skills by comparing KSAT with SAT. We used mathematical problem solving process and category of context of PISA framework (OECD, 2013) to administer the comparison of KSAT and SAT. Result shows that both KSAT and SAT use various context, but items in KSAT is limited in assessing critical understanding. We suggested several ways to develop context-based items for KSAT in which statistical literacy could be assessed.

• The Mathematical Education
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• v.61 no.2
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• pp.305-322
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• 2022

Angle has a variety of aspects, such as figure, measurement, and rotation, but is mainly introduced from a figure perspective and a quantitative perspective of the angle is also partially experienced in the elementary mathematics textbooks. The purpose of this study was to examine how the angle concept introduction and development pattern in elementary school mathematics textbooks are linked or changed in middle school mathematics textbooks, and based on this, was to get the direction of writing math textbooks and implications for guidance. To this end, 57 math textbooks for the first grade of middle school were collected from the first to the 2015 revised curriculum. As a result of the study, it was found that middle school textbooks had a greater dynamic aspect of each than elementary school textbooks, and the proportion of quantitative attributes of angle was higher in addition to qualitative and relational attributes. In other words, the concept of angle in middle school textbooks is presented in a more multifaceted and complex form than in elementary school textbooks. Finally, matters that require consensus within elementary, secondary, and secondary schools were also proposed, such as the use of visual expression or symbol, such as the use of arrows and dots, and the use of mathematical terms such as vertex of angle and side of angle.