• Journal of Educational Research in Mathematics
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• v.17 no.2
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• pp.91-109
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• 2007

This study deals with the problem of transition from arithmetic to algebra and the relationship between elementary and secondary school mathematics for systems of linear equations. In elementary school, activity for solving word problems related to systems of linear equations in two variables falls broadly into using two strategies: Guess and check and making a table. In secondary school, those problems are solved algebraically, for example, by solving systems of equations using the technique of elimination. The analysis of mathematics textbooks shows that there is no link between strategies of elementary school mathematics and secondary school mathematics. We devised an alternative way to reinforce link between elementary and secondary school mathematics for systems of linear equations. Drawing a diagram can be introduced as a strategy solving word problems related to systems of linear equations in two variables in elementary school. Moreover it is closely related to the idea of the technique of elimination of secondary school mathematics. It may be a critical juncture of elementary-secondary school mathematics in the case of systems of linear equations in two variables.

• School Mathematics
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• v.13 no.1
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• pp.37-63
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• 2011

This research had investigated the teaching practice in the mathematics classrooms with immigrant students to describe how effectively mathematics teachers create inclusive learning environment of mathematics. The analysis of the data from the elementary schools suggests that teaching practice in the class was consistent to the criteria for 'contextualization of students' lived experience' and 'mathematical conversation'. However, while the quantitative results suggested that the teachers showed high expectation to their students in their teaching, the qualitative analysis revealed the teacher's beliefs and attitudes against providing equitable educational opportunity for every student. In the middle school classrooms, it was found that the teaching practices were not compatible to the goals of multicultural mathematics education. The analysis of the survey data regarding teachers' multicultural competence suggests that the teachers possessed rather advan]ced understanding of multicultural mathematics education but they need materials and pedagogy for classroom teaching from multicultural perspectives.

• The Journal of Korean Association of Computer Education
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• v.20 no.2
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• pp.47-55
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• 2017

The purpose of this study is to investigate the predicting factors on the increase in computer entertainment behavior with the sample from KYPS data. The results of the Decision Tree model revealed that: (1) Neighbor supervision, self-belief, parent attachment, life satisfaction, and peer attachment were significant for the increase in computer entertainment behavior. (2) Neighbor supervision, class participation and leisure satisfaction were significant for male students' increase in computer entertainment behavior. (3) Optimistic disposition, teacher attachment, and peer attachment were significant for female students' increase in computer entertainment behavior. These results suggest that meaningful factors and their divers interactions should be considered in methods and programs for regulating and preventing the increase in computer entertainment behavior.

• The Journal of Korean Association of Computer Education
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• v.21 no.2
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• pp.1-10
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• 2018

As the emphasis on software education in the 2015 revised curriculum, Informatics has become one of the essential subjects for the middle school students, and contents and achievement standards have been developed focusing on the information culture literacy, computational thinking, and collaborative problem solving ability. The 2015 revised Informatics curriculum for the first grade of middle school has been applied for the first time in 2018. Various educational policies have been promoted such as training of teachers, development of teaching and learning materials and programs to support implementation of the actual school fields. In this study, we analyzed the improvement issues and tasks of the 2015 revised curriculum according to the change of the Informatics education policy of in the global, and suggested the development direction of the future Informatics curriculum in Korea. The direction of the development of the Informatics curriculum is focused on ensuring the linkage between school level and identity of informatics education.

• Journal of The Korean Association For Science Education
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• v.22 no.2
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• pp.286-298
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• 2002

This study was to investigate the K-8 grade students' conception types and trend of grade related to evaporation and conditions of evaporation activities. Twenty-five students were random sampled and they were interviewed in-depth during designed activities related to evaporation and conditions of evaporation. The data were analyzed qualitatively. The students' conceptions related to evaporation activities were divided into 5 types. The conceptions related to conditions of evaporation were divided into 5 types, too. Students' conceptions gradually changed to scientific conceptions with grade. But alternative conceptions were continued also.

• Journal for History of Mathematics
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• v.19 no.2
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• pp.101-114
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• 2006

The content and method of geometry taught in secondary school is rooted in 'Elements' by Euclid. On the other hand, however, there are differences between the content and structure of the current textbook and the 'Elements'. The gaps are resulted from attempts to develop the geometry education. Specially, the content and method for the proportional relations of geometric figures has been varied. In this study, we reviewed the changes of the proportional relations of geometric figures with pedagogical point of view. The conclusion that we came to is that the proportional relations in incommensurable case Is omitted in secondary school. Teacher's understanding about the proportional relations of geometric figures is needed for meaningful geometry education.

• Journal of the Korean Geographical Society
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• v.47 no.3
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• pp.440-458
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• 2012

This study analyzed the ignorance and prejudice with regard to African culture, which can be seen at the textbook and class course centering the geography class from 1990's to the present, and reviewed critically the related education and learning effects for mutual understanding. This study results are as follows: First, in the geographic environment contents, the image regarding huge continent, the local image regarding the various physical environments and the geographical importance as the ancient civilization birthplace were not included in the description. Second, the description regarding the African culture and history was focused to the singular African image, so the fixed concept and distorted image has been rooted into the formation of cultural meta-knowledge. Third, the negative sides rather than positive development and the past backward facts rather than changed status have been emphasized in the description regarding African resources and industry as well, so only the region surrounded with the various problems including poverty and the image as underdeveloped country have been rooted into the description. Now, real Africa view, an image for a variety of attractive and vibrant Africa rather than the same culture and characteristics of African must be learned in text books.

• Journal of Gifted/Talented Education
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• v.21 no.3
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• pp.611-630
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• 2011

The purpose of the study was to investigate which psychological factors influence on the gifted students' achievement. As a psychological factor, self-determination, learning goal-orientation, self-efficacy, belief of intelligence, and self-regulated learning strategy were examined. The difference in psychological factors between the gifted with high achievement and the gifted with low achievement was to explored. For the study 128 gifted students' data from second-year data of Korean Education Longitudinal Study (KELS) were selected and analyzed. The findings indicate that the predictors of gifted students' achievement are extrinsic regulation, identified regulation, mastery-approach goal, self-efficacy, elaboration, and meta-cognition factor. Especially, the factor of elaboration and identified regulation are the strongest predictors. The findings from t-test analysis indicate that the gifted with low achievement show the low level in self-determination, mastery-approach, self-efficacy, elaboration, meta-cognition, place management and seeking social assistance from teacher. Therefore the developing elaboration, one of regulation learning strategy, is essential to improve the achievement of the gifted students with low scores.

• Journal of Science Education
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• v.38 no.1
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• pp.168-181
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• 2014

The purpose of this study was to monitor evaluation in science education at primary and secondary school in Korea. In order to do this, the survey was administered. The subject was 518 teachers; 292 elementary school teachers, 110 middle school science teachers and 116 general high school science teachers. It was found that the ratio of paper examination increased while that of performance evaluation decreased according to the grade of school. In the science paper examination, the ratio of selection type item was higher than that of supply type item, and the ratio of item belonging to knowledge area was higher than that of item belonging to the inquiry area regardless of the grade of school, teaching career, and teacher's gender. The teachers recognized the necessity of supply type item, but they suffered from the reliability of the result of that item. And it was hard for them to do performance evaluation because it took much time and effort. This study suggested that the high-quality in-service teacher training be provided and laboratory assistants who help the science experiment and grading test papers be employed in order to fulfil the performance evaluation and increase the ratio of supply type item and items belonging to the inquiry area.

• Journal of The Korean Association of Information Education
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• v.21 no.3
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• pp.321-334
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• 2017

The purpose of this study is to investigate teacher factors influencing ICT literacy in elementary and middle school students. For this purpose, ICT literacy was measured in 6,383 students in $4^{th}$, $5^{th}$ and $6^{th}$ graders, 337 teachers in 150 elementary schools, and 9,183 students in $1^{st}$, $2^{nd}$ and $3^{rd}$ graders, 337 teachers in 150 middle schools. Additionally, we conducted multiple regression analysis to explore teachers' influential factors. As a result, our finding indicated that the level of teachers' computer literacy had a positive effect on elementary students' ICT literacy(overall and 7 sub-domains) while ICT utilization during class and teachers' age had a negative effect on elementary students' ICT literacy(overall and 7 sub-domains). In addition, we found that major in ICT education and the level of teacher education had a positive effect on middle students' ICT literacy(overall and 7 sub-domains). Based on the results of this study, we suggested increasing hours in the teachers' professional development and the pre-service and in-service teacher education course and supporting or promoting the self-development of the information school teachers in middle schools.