• 한국초등과학교육학회지:초등과학교육
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• 제28권3호
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• pp.321-330
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• 2009

This study investigated the effects of teaching-learning lesson plan using cognitive acceleration instructional strategies applied to the unit, 'The Light and Shadow' in elementary school. Two classes of the second grade elementary students (N=63) in Chungcheongbukdo districts were assigned to control and treatment groups each, and were taught about 'The Light and Shadow' for 8 class hours. For the treatment group, teaching-learning lesson plan using cognitive acceleration instructional strategies developed by this research was applied. The traditional instruction by textbook and teacher's guides was used for the control group. All students were tested with the test for concept of the shadow and the test for academic achievement about the unit. As the result of the post-test, the scores of the treatment group were higher than those of the control group. However, it was not statistically meaningful difference. The scores of the treatment group were significantly higher than those of the control group in the delayed-post-test for concept of the shadow. No significant interaction was observed with respect to the students' gender, instruction and pre-level for the concept of the shadow. Data analysis indicated that the scores of the treatment group were significantly higher than those of the control group in the post-test and delayed- post-test for the concept of the shadow in the area of object permanence. Our research work shows the effectiveness of the teaching-learning lesson using cognitive acceleration instructional strategies for the development for concept of the shadow for elementary school students, and suggests the necessity for this kind of teaching-learning program in the fields.

• 한국초등과학교육학회지:초등과학교육
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• 제34권4호
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• pp.357-371
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• 2015

Even after learning electric current, elementary school students have various non-scientific conceptions and difficulties. Because flow of charge is not visible. Also elementary school students do not learn theory but phenomena, so they cannot transfer theoretical perspective to new situation. In this research, we have designed instruction based on PhET simulation visualizing flow of electric charge and applied it to 37 science-gifted students in elementary school for measuring conceptual understanding. As a result, six out of the seven Hake gains of question set are high gain and just one is middle gain because the students have understood the flow pattern of the charge through circuit elements such as light bulbs, wire, as well as battery with PhET simulation and it gives a chance to create various questions spontaneously about electric current. Also they become able to do spontaneous mental simulation without PhET simulation about flow of charges. This research, suggest that developed materials using PhET simulation could be used as not only program for gifted students in elementary school, but also the electrical circuit section in an elementary science curriculum.

• 한국초등과학교육학회지:초등과학교육
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• 제31권4호
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• pp.481-489
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• 2012

The purpose of this study was to analyze the understanding of the sighting and hearing elementary school students have through drawing. For this purpose, we conducted a questionnaire survey of 602 elementary school students. The questionnaire was composed with open-ended question developed by West et al.(2008). This questionnaire was presented only appearance of face. And let them express the sensory pathway by drawing and writing. The students' responses for questionnaire were classified by 5 levels. Inner-researcher consistency was 0.89, inter-researcher consistency was 0.83. The data analyzed were ${\chi}^2$ by using SPSS. The result of this study were as following: First, elementary school students have misconception of sighting and hearing. There were no difference among the grade. In spite of becoming upper grade, students have still misconception. Second, scientific concept that male students have were significantly more than female. Third, the concepts of the anatomically organs are more exposed in real-life situations, students known better. Within these results, it would be used for developing teaching-learning strategies which can use misconceptions students have.

• 한국과학교육학회지
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• 제15권2호
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• pp.164-172
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• 1995

In this study, the researcher tried to find out the effect of using a computer interface in teaching speed concept in the elementary school. The 4th and 5th pupils were sampled for this study. The school is located in a sub-urban agricultural area in Korea. In the study, the subjects were divided into two groups: experimental and comparison group. From the pretest, two groups did not show any difference in the understanding of speed concept. The computer interface and the programs to operate the interface and data analysis were developed by researcher. The interface is a modular type and designed ready to connect to microcomputer. The test items were consisted of (1) comparison of speed, (2) change of motion, (3) acceleration, and (4) deceleration. As the result, the researcher found the following results: 1. In case of speed comparison, no significant difference was found between experimental and comparison group. 2. In case of change of motion, acceleration, and deceleration, the experimental groups showed higher achievement both in 4th grade and 5th grade. However, the 4th graders showed more learning than the 5th graders. In conclusion, this study showed that the use of computer interface seemed to be very effective in teaching and learning speed concept in elementary school.

• 한국초등과학교육학회지:초등과학교육
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• 제33권4호
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• pp.736-750
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• 2014

The purposes of this study were to investigate concepts of Korean and American elementary school pre-service teachers on combustion, and to compare the concepts of Korean pre-service teachers with those of American pre-service teachers. For this study, concept test on combustion was administered to 23 Korean and 18 American elementary school pre-service teachers. The test composed of 6 items: 'Definition of combustion', 'The reason why a candle in a glass bottle is blown out when the bottle was closed', 'The change of gases in the bottle when a candle burns in it', 'The combustion products of a candle', 'The combustion products of steel wool', and 'The combustion products of a substance'. The results showed that the rates of elementary school pre-service teachers who had scientific concepts on combustion were very low in both Korean and American pre-service teachers' groups, although they were a little different from items. However the rates of pre-service teachers who had partial concepts and misconceptions on combustion were high in two groups. The levels of Korean elementary school pre-service teachers' concepts were a little higher than those of American elementary school pre-service teachers' concepts. The contents and activities on combustion which are in Korean and American science textbooks seem to affect building up their concepts on combustion.

• 한국초등과학교육학회지:초등과학교육
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• 제41권2호
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• pp.307-324
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• 2022

이 연구에서는 2015 개정 교육과정에 따른 초등 과학 국정 교과서와 동 교육과정에 따라 2022년에 출판된 초등 과학과 검정 교과서 7종의 '물체의 무게' 단원에 진술된 과학 개념의 서술과 탐구활동 내용의 특징을 비교하여 초등 과학 검정 교과서의 내용 다양성을 분석해 보았다. 이를 위해 각 교과서의 설명텍스트에서 개념 서술 내용의 흐름, 개념 서술 과정에서의 특이점을 분석하였고, 언어네트워크 분석 방법으로 노드와 링크 수, 연결중심성이 높은 중심 단어를 분석 하였다. 또한 교과서에 제시된 탐구활동에서 탐구활동 유형, 탐구과정기능 및 탐구 활동 내용을 분석하였다. 연구 결과, 검정 교과서에서는 과학 개념의 서술이나 탐구활동 내용 구성에서 다양성이 잘 드러나지 않았다. 하위 개념의 포함 여부, 중심 단어 등이 교과서별로 유사하였다. 탐구활동을 비교하였을 때에도 탐구활동 내용과 탐구 유형, 탐구과정기능이 유사하였다. 특히 이전 교과서에서 제시되지 않았던 새로운 탐구활동 주제나 실험 방법을 도입한 경우는 없었다. 하지만 동일한 교육과정을 바탕으로 개발되었음에도 불구하고 검정 교과서 체제의 장점을 살릴 수 있는 노력들이 일부 시도되고 있었다. 핵심 내용을 설명하기 위한 하위 개념의 배치 순서가 교과서마다 달라 개념을 설명하는 과정이 몇 가지 유형으로 구분되었고, 탐구활동의 내용은 동일하였지만 기존 실험에서의 어려움을 개선하고 보완하기 위해 탐구 활동 준비물이 교과서별로 서로 다르게 나타나기도 하였다. 이를 바탕으로 검정 교과서의 장점을 살릴 수 있는 시도가 계속되어야 할 것이다.

• 한국초등과학교육학회지:초등과학교육
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• 제30권1호
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• pp.113-128
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• 2011

The purpose of this study was to confirm achievement of goals in science curriculum. The questionnaires related to 'solution' chapter of 5th grade were developed. The subjects were 69 sixth grade elementary school students and four elementary school teachers. 5 students were selected for deep interviews. Each interview was progressed separately, and all the contents of the interviews were recorded. As results, it is revealed that most of the students could not understand basic concepts of 'solution' chapter. The teachers and the students recognized that explanations in the textbook were insufficient. Many inquiry activities were introduced in textbooks, but the students could not acquire inquiry abilities, especially data interpretation and generalization abilities. Inadequate pictures in the textbook also disturbed the students' learning of inquiry ability. Using materials of real life in textbook could not attract the elementary school students' interests effectively.

• 한국초등과학교육학회지:초등과학교육
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• 제34권3호
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• pp.288-296
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• 2015

This study aimed to analysis of concepts and inquiry activities related to the 'Earth Science' area in the South Korean elementary school textbooks to the current and to seek the improvement of future textbook. For the study, we were collected South Korean elementary school textbooks to the current. After the collection had been made, we were analyzed related to the 'Earth' area in the South Korean elementary school textbooks and were extracted central concepts and inquiry activities. The result of this study: First, there were 'A change in the land', 'Strata and Fossil', 'Volcanoes and Earthquakes', 'Earth and Moon', 'The weather', 'The Solar system and the Star', and 'Seasonal Change' in the central concepts related to the 'Earth' area in the South Korean elementary school textbooks to the current. Second, central concepts were almost the same but the curriculum was changed. Third, inquiry activities also were confirmed to be maintained with little change. This result was believed that it can provide a variety of suggestions at this point in changing the curriculum.

• 수산해양교육연구
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• 제28권1호
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• pp.235-247
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• 2016

The purpose of this study is to analyze elementary school students' pre-concept of electromagnet and to investigate effects of instruction through social interactions on conceptual changes of the electromagnet. For the purpose, 108 elementary school students of 3 classes were selected from the 6th grade. They were divided into the control group I, control group II and experimental group. The control group I was treated through traditional instruction on the basis of text book. The control group II was instructed with a modified version of the textbook to help them better understand the concept of electromagnet. The experimental group was treated through instruction on the basis of the above modified version of the text book and social interactions. Conceptual changes on electromagnet before and after the treatment were quantitatively and qualitatively analyzed using the identical test. The students' styles of social interaction were qualitatively analyzed with tape records of their discussions and work sheets. Effects of instruction through social interactions based on radical constructivism on the 6th-grade elementary school students' concept of electromagnet were examined here. The results were described as follows. Firstly, after the treatment, the experimental group was statistically significantly higher in mean values of conceptual understanding and academic achievement than both the control group I and II. Secondly, styles of social interaction in the three sub-groups of the experimental group were qualitatively analyzed, among the threes, high- and medium-level sub-groups were higher in the frequency of linguistic social interaction than the low-level sub-group. Those students who were excellent in communication skills actively participated in linguistic social interactions. In discussions among the three sub-groups, students of the high- and medium-level sub-groups provided explanations or information while those of the other sub-group sometimes were passive by just listening, but in large actively participated in communication. In conclusion, instruction through social interactions was effectively changed in the 6th-grade elementary school students' concept of electromagnet.

• 한국초등과학교육학회지:초등과학교육
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• 제37권1호
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• pp.80-91
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• 2018

The visualization materials in science textbooks are very important in students' learning. Recent visualizations are increasingly emphasizing the importance of infographic visualizations. The purpose of this study is to analyze the visualization materials in $5^{th}$ and $6^{th}$ elementary science textbook focusing on infographics. Visualization materials were classified into infographic and simple illustration. Infographics were classified into 8 sub-types. Findings are as follows. First, infographics were 19.0%, and simple illustrations were 81.0% among elementary textbooks' visualization materials. The portion of infographic varied by content areas. In Biology and Earth Science area, the portions of infographic were high. Second, several types of infographics were used in elementary science textbooks. Timeline infographic were the most frequent, and emphasis infographic, concept mapping infographic, comparison infographic were used frequently. The most frequent types of infographic were different by content area. Third, infographics used more than simple illustrations in the role of concept explanation. Educational implications on science textbook's infographics were discussed.