• Journal for History of Mathematics
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• v.32 no.6
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• pp.281-299
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• 2019

Mathematical problem solving has become a major concern in school mathematics, and methods to enhance children's mathematical problem solving abilities have been the main topics in many mathematics education researches. In addition to previous researches about problem solving, the development of a mathematical problem solving method that enables children to establish mathematical concepts through problem solving, to discover formalized principles associated with concepts, and to apply them to real world situations needs. For this purpose, I examined the necessity of problem solving education and reviewed mathematical problem solving researches and problem solving models for giving the theoretical backgrounds. This study suggested the problem solving approach based on the intuitive and the formal inquiry which are the basis of mathematical discovery and inquiry process. And it is developed to keep the balance and complement of the conceptual understanding and the procedural understanding respectively. In addition, it consisted of problem posing to apply the mathematical principles in the application stage.

• Journal of Korean Elementary Science Education
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• v.23 no.4
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• pp.273-278
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• 2004

According to Piaget, children aged 11 are in the middle of concrete operation period and formal operation period. So, it is necessary to adopt the Learning Cycle Model (LCM) which helps students improve their cognitive development. After determining the test for the Science Concept of Matter (SCOM), the experimental group showed higher average than the comparative group in the post-test. In the sound understanding, the experimental group showed higher ratio than the comparative group. And in the ratio of imperfect, wrong understanding and no response, the experimental group was lower than the comparative group. On the questions that were needed the complicated inquiry, many students of both groups still couldn't find the fundamental cause. In forming the scientific conceptualization, there was a meaningful difference (p < .001) after post-test Analysis of Covariance (ANCOVA) with pre-test result. After determining the test for the Test Inquiry Science Process (TISP), the experimental group showed higher average than the comparative group in the post-test. In the category of basic inquiry process which is needed in concrete operation, there was a meaningful difference (p < .05). In the category of unified inquiry process which is needed in formal operation, they showed no meaningful difference (p > .05). Therefore, applying the LCM to the chapter of 'Solution and Dissolving' is more effective on improving the scientific conceptualization and on helping the concrete operation abilities than the teacher centered learning.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.5 s.153
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• pp.762-771
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• 2006

This study provides the basis far salesman to present formal style in suggesting Good-Bad formal style as well as in examining a meaning structure and valuation differences of visual valuation. Stimulus pictures has been chosen consequently 76 pieces through the preliminary inquiry who are working at department store, franchise salesman, car salesman, insurance staff and other salesmen. The tool for visual valuations about suit style is composed of 7 points of Likert type by making 21 questionnaires from the preliminary study. Collecting data is 512 pieces are used to analyse. The duration to collect data was from August 5th to 20th in 2004 and SPSS statistics package program has been used. At first, main factors according to the visual valuation of formal style are Attractiveness, Having abilities, Uncomfortableness. In second, Good formal style shows more attractive and looks having more abilities than Bad formal style and less uncomfortable. In third, in the relations of Good-Bad formal style and demographics, there is meaningful differences according to gender, age, job, salary. In fourth, in the relations of a purchase purpose and visual valuations of formal style, for Good-Bad valuation, the first impression is the most important factor and it is likely to be related to the purchase purpose, on the other hand, the purchase purpose has related to impression the most. It has presented that Good-Bad valuation and purchase purpose have an influence on the factor of Attractiveness.

• Journal of Korean Elementary Science Education
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• v.26 no.5
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• pp.509-524
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• 2007

The purpose of the study is to compare elementary school science textbooks ($3^{rd}$ grade) in Korea and the U.S., centering on the ways to present scientific concepts and inquiry process in the units of 'matter.' The analysis is focused on: a) general structure of the units; b) how to present scientific concepts in terms of its connections and complexity; c) how to present inquiry process in terms of its types and skills. The findings of the study are as follows. First, the contents of 'matter' units are scientific discipline-based in both countries. The general structure of the units in Korean textbooks is unrestricted compared to those in the U.S. Second, the connections among the concepts are poor and the level of complexity is low in Korean textbooks, which are contrary to those in the U.S. textbooks. Third, it is a common feature that the inquiry process is based on learners' everyday experiences with simple experiments in two countries' textbooks. However, the inquiry process in the U.S. textbooks is provided with detailed instructions while the process in Korea is presented with diverse activities without formal guidelines. Based on the results, the study suggests three recommendations to improve Korean textbooks: a) science contents should be linked to other disciplines in order to promote practical applications; b) scientific concepts are required to be tightly connected and provided with in-depth explanations; c) inquiry process is needed to be presented with specific guidance to facilitate scientific thinking.

• Journal of the Korean earth science society
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• v.30 no.7
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• pp.909-927
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• 2009

Inquiry became an essential methodology in science education. Recently, argumentation becomes more important in inquiry, but inquiry-based teaching in school science would not provide enough opportunities for students to have voluntary and active interactions during inquiry activities. Informal science learning can be an alternative for authentic inquiry. Accordingly, this study aims to find interaction patterns in dialogic inquiry of junior high school students in small groups in the natural history gallery. Inquiry elements and interaction patterns are analyzed with 42 dialogues of 13 small groups. As a result, seven interaction patterns are identified. First, five major interaction patterns were drawn as follows; Sharing questions, asking questions and simple response, asking questions and simple explanation, asking questions-simple explanation-(collecting data)-data based explanation, and asking questions-collecting data-data based explanation. Second, pattern 2, 'asking questions and simple response', is subdivided into three categories; passive and/or evasive response, inaccurate response, and repeated patterns of asking questions-simple response. The results of the study provide different patterns of dialogic interactions in a small group inquiry in informal contexts from formal contexts, and provide foundations to understand middle school students' interactive dialogues of inquiry occurred in the natural history gallery.

• Journal of The Korean Association For Science Education
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• v.27 no.9
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• pp.870-880
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• 2007

The purpose of this study was to understand the change and characteristics of interactions in a heterogeneous group in scientific inquiry experiments. For this purpose, the process of students' interactions in small group activities were analyzed. This study focused on two, small heterogeneous groups of eighth graders. Students were involved in 13 scientific inquiry experiments for one year and students' interactions in each experiments were observed and recorded using video/audio and the data recorded were transcribed. The analysis of data was based on the method of making a note by looking and listening to the data repeatedly. Students' interactions in heterogeneous group changed toward that 3A (early formal operation student solved the problems by oneself and other students only listened to 3A student's explanation or copied the answer. The least able student was alienated from peers' interactions. In the meantime, new interactions of two middle level students were shaped. Educational implications of the progression of activities emphasizing interactions and the organization of grouping were drawn.

• Journal of the Korean earth science society
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• v.25 no.7
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• pp.576-585
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• 2004

This study was conducted to analyze the relationships between terms, learning concepts and inquiries in ocean unit, the National Common Basic Curriculum. The several science textbooks were selected to use for study, written in accordance with the 7 current national curriculum for the fourth grade of elementary school, the seventh of middle school and the tenth of high school. The higher the school level becomes, the frequencies of using terms related with ocean region get. The explanation of terms, however, has a tendency to be less frequent in the high school level. In the perspective of learning concept, there are more concrete concepts than formal concepts regardless of school level. Pure scientific context appears most often in inquiry contest through the whole course of every school level. In respect to inquiry process, the frequency of integrative inquiry process is on the increase as the school level gets higher. From the viewpoint of inquiry activity, there have been a lot of discussions, experiments and investigations in every school level, while high school does not the present any field study and project. Through these result, it is considered that the explanation of main terms is inevitable in the textbooks as basic educational material without regard to school level. In learning concept and inquiry context, a well-rounded learning is needed in relation to students' cognitive development and science-technology-society. Especially for the inquiry activity of earth science education, the educational effect is remarkable through field study; its appropriate application is required, accordingly.

• Journal of Korean Elementary Science Education
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• v.30 no.4
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• pp.468-481
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• 2011

This research is to observe and analyze the student interactions when inquiry problems were generated along with the students by using asynchronous discussion methods with the class bulletin board. For this research, 10 students from a single class of 6th grade were selected. The subject students were divided into 2 groups by cognitive levels. After the students were submitted the 4 problem situations for 1 week each, the discussion process was analyzed. The research results are as follows. First, the analysis of the step by step interactive discussion showed that several students answered for the question from a single student while discussing first for the question and answer in a form of a question with many multiple answers without any connections with the previously asked questions. At the end of the discussion, one to two students answered to a question by taking turns and the type of discussion changed to one question - one answer type by answering to the person who spoke prior to the next. Second, the discussion took place with the students in the transitional stage speaking in time in order, to provide comments to the bottom of the linear form and students in the formal operational stage students speaking in temporal order, regardless of the number of comments in the direction of the radiation(mind map) forms. The individual comment speaking rates were similar in the two groups so the students were able to speak indiscriminately.

• Journal of the Korean Society of Earth Science Education
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• v.6 no.1
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• pp.1-12
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• 2013

20 preservice teachers at college level participated in this study and interacted with students at elementary and middle school levels during science camp offered by science center in Taiwan. Preservice teachers displayed moderate (above the average, 4 point out of 5) understandings about scientific literacy and scientific views in all aspects of the nature of science before the camp. Then, the researchers designed science camp programs which were expected to promote students' scientific literacy; scientific knowledge, inquiry skills for experimentation as well as for argumentation, affective domain such as the attitude toward science and the understandings about nature of science and the relationship among STS (Science-Technology-Society), all of which were embedded in the programs. Preservice teachers seemed to perceive scientific literacy pretty well (over 4 point) before the camp, however, preservice teachers' understandings about scientific literacy were not much scored (around 3 point, but still moderate scores of average) as expected after concrete inquiry activities. The reasons why this happened could be that preservice teachers were not trained to employ theory into the context to be more practical or the researchers did not develop camp program which included the aspect of scientific literacy successfully. The discussion and implication were made in teacher education in that preservice teachers must be prepared how to bridge theory into practice, and informal science education in that educators at science centers must be trained to be experts in providing the envisioned educational programs to meet the goal of science education, scientific literacy.

• The Journal of Korean Philosophical History
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• no.28
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• pp.87-116
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• 2010

In elementary, environmental education have been doing in various subjects. The features of environmental instruction would be reflected on contents of environmental education and characteristics of each subjects. These contents of environmental education might be contained normative contents, and it is moral subject that treats these normative contents systematically. Then environmental instruction of moral subject in elemental school should be approach and inquire teaching contents related to environment education. In elementary school curriculum of moral subject, teaching contents related to environment are 'preciousness of life' and 'right views of Nature and protection of the environment'. By these contents, moral instruction can approach to life of animal and plants centered on the reason to take them preciously and relation between nature and humans centered on the moral consideration. It is a difference that approaches to the environmental education not by factual understanding but by normative understanding in moral instruction. It must be focused on ethical inquiry for normative approach and reserving identity of moral subject. Necessary conditions for ethical inquiry to the environmental instruction are moral status of things besides humans. For the ethical inquiry to the moral status of nature environments, teachers could be set the logic of instruction based on the developments of environmental ethics. Formal cohesiveness of environmental instruction could be developed in sequence of ethical inquiry on moral status to the life of animal, life of plants, and whole system of nature. For this, teacher could reflect on their instruction focused on some explanations. That is, it is explanation to the animal life based on the individual-extended human oriented ethics for human, plants life based on the individual-non human oriented ethics, whole natural system based on the holistic-non human oriented ethics. When teachers reflect these explanation, they can compose their instruction as 'finding something in common with humans and animals', 'reflection on the attitude to the commons', 'thinking about reasons on the different attitudes to the commons', 'the things that disappear as plants die', 'thinking on values about non organism'. These plan of instruction could be critically reconstruct by other teachers. But environmental consciousness by ethical inquiry should be hold on instruction to the environment reflected on identity of moral subject.