• Journal of the Korean Chemical Society
• /
• v.55 no.6
• /
• pp.1056-1073
• /
• 2011

The purpose of this study was to develop teaching materials using Pyramid model of divergent thinking, Inverse pyramid model of convergent thinking and Diamond model of divergent-convergent thinking. And the teaching materials was implemented to 120 students in middle school over 10 weeks. Results indicated that the experimental group presented statistically meaningful improvement in creative thinking skills, especially in fluency and flexibility(p<.05). Also the teaching materials contributed to improve critical thinking skills, especially in inquiry process of recognizing problems, making conclusion and generalization(p<.05). Moreover, academic achievement was improved(p<.05). But, there was no significant improvement in creative personality(p<.05).

• Journal of the Korean Chemical Society
• /
• v.48 no.3
• /
• pp.283-290
• /
• 2004

The purpose of this study were to develop of courseware using scaffolding strategy and to investigate the effect of courseware instruction upon students' conceptual understanding and affective domain including effort and self-checking. 10th grade students in the experimental and control groups were selected from high school at Cheongwon-gun in Chungbuk, and taught about chemical reaction rate for 3 class hours. The students in the experimental group studied individually through courseware using scaffolding strategy and worksheet and teacher-centered expository lesson was used in the control group. Prior to the instructions, test specification for problem-solving assessment (TSPSA) was administered and the scores of the previous science achievement test were obtained. After the instructions, the posttest on conceptual understanding and TSPSA were administered. Results of this study revealed that the mean score of the experimental group in the conceptual understanding test was similar to that of the control group at statistically significant level. This result implies that the courseware using scaffolding strategy could be a tool of the individualized instruction. The experimental group improved significantly better in three components of the TSPSA such as effort, self-checking, and cognitive strategy. From this result, it is considered that learners' self regulation is improved by being taken over responsibility of learning. So, it is suggested that instruction using scaffolding strategy is needed in science class to improve self-leading learning ability.

• Journal of The Korean Association For Science Education
• /
• v.26 no.2
• /
• pp.239-245
• /
• 2006

The purposes of this study were to develop and implement a teaching strategy that reinforced teacher-student interaction for middle school first grade science and investigate the impact of the teaching strategy on student comprehension of scientific concepts, logical thinking ability, and science-related attitudes. 200 students attending a co-ed middle school located in Gyeonggi province were selected for the study and divided into an experiment and control group each consisting of 100 pupils. The teaching strategy reinforcing teacher-student interaction was applied to the experiment group, while conventional teaching, teacher-led lecturing, was carried out on the control group. To accomplish reinforced teacher-student interaction teacher asked students diversified questions and gave delayed feedbacks that deliberately focused on thought provocation. Results showed that the developed teaching strategy was effective in improving the students' logical thinking ability(p<.01). However, no significant differences were found in student comprehension of scientific concepts and science-related attitudes between the experimental and control group(p<.05). It was determined that more sound research is needed to develop and apply a lesson plan based on the teaching strategy used in this study.

• Journal of Engineering Education Research
• /
• v.14 no.2
• /
• pp.40-50
• /
• 2011

This study is to investigate an effective instruction for female students in an engineering classroom through gender -sensitive teaching strategies by analysing recorded classroom instruction, reflective journals of professor, and mentoring instructions of A professor teaching "non-steel materials and design" in an engineering classroom. This study which used a qualitative approach for data collection and analysis showed changes of A professor in his way of teaching. The changes are: making rough lesson plan ${\rightarrow}$ making detailed lesson plan being satisfied with his teaching skills ${\rightarrow}$ trying to improve his teaching skills, using negative feedback ${\rightarrow}$ using positive feedback, pointing weaknesses as pre-engineers ${\rightarrow}$ providing detailed information needed to be engineers. This paper deals with the theory comparison between a conventional engineering education and new engineering education, in which conventional models may fail to give satisfactory results. Finally, we provide real application examples to evaluate the feasibility and generality of the proposed method in this paper.

• Journal of The Korean Association For Science Education
• /
• v.30 no.1
• /
• pp.13-26
• /
• 2010

The purpose of the study was to investigate the effect of observation knowledge generation based on a scientific observation strategy in 6th grade students. In this study, we selected the topics related to the observation in elementary science curricula and developed worksheets and guidelines such that subjects accomplished the systematic observation based on the method and strategy of the observation knowledge generation. Seventy-five 6thgraders, 38 for the experimental group and 37 for the control group, were chosen for this study. The experimental group was taught the science lessons with 14 sessions based on the generation of various scientific observation types, whereas the control group was provided with traditional lessons. Before and after the treatment, a candle-burning task was set for subjects to test the effect of the lessons of scientific observation knowledge generation. According to the results, subjects in the experimental group were more effective in the generation of various observations than subjects in the traditional one. The observation abilities of the experimental group was shown statistically to have a significantly higher performance in richness and the diversity. In addition, they showed higher scores in the scientific observation ability task than the control one. Therefore, the systematic lesson strategy in scientific observation is presumably effective to improve students' ability of scientific observation knowledge generation.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2016.01a
• /
• pp.323-324
• /
• 2016

본 연구에서는 공과대학 수업에 지각적 주의 환기 전략이 학습동기에 어떤 영향을 주는지 알아보기 위해 지각적 주의 환기 전략으로 스마트 기기를 활용한 수업을 진행하면서 학습동기에 미치는 효과를 분석하였다. 분석 방법으로는 Keller의 ARCS 이론에 근거하여 개발한 IMMS를 수업의 특성에 맞게 수정한 검사지를 검사도구로 사용하여 지각적 주의 환기 전략을 적용하기 전 사전과 적용한 사후 검사를 실시한 후 그 결과를 통해 학습동기를 분석하였다. 연구 결과, 지각적 주의 환기 전략으로 스마트 기기를 활용한 교수법이 스마트 기기에 익숙한 대학생들에게도 사전, 사후 간의 유의미한 차이가 있는 것으로 나타났다. 특히 그 하위범주 중 주의력에 크게 영향을 미친다는 것으로 나타났다.

• Journal of Science Education
• /
• v.43 no.3
• /
• pp.329-341
• /
• 2019

The purpose of this study is to investigate the effects of instructional strategies using the process of procedural thinking in elementary science classes on students' computational thinking and creative problem solving ability. For this purpose, instructional strategies using the process of procedural thinking for science class were developed and applied. The objects of this study were 6th graders from an experimental class (29 students) and a comparative class (29 students) at S elementary school in Gimpo City. The results of the study are as follows: First, as a result of examining the difference in the computational thinking ability between experimental group and comparative group, the experimental group scored higher than the comparative group, but there was no statistically significant difference. Second, the creative problem solving ability of the experimental group after applying this program was higher, and statistically significant differences were observed (p < .05).

• Journal of The Korean Association For Science Education
• /
• v.28 no.8
• /
• pp.922-936
• /
• 2008

The purpose of this study was to investigate the effects of the Science Writing Heuristic (SWH) teaching strategy on cognitive levels, science concept understanding, argumentation and writing skills. 131 students attending to co-ed middle school were selected for the study and assigned to the experimental and comparative group. The teaching strategy using SWH was applied to the experimental group, while the traditional one led by teacher's lecturing was applied to the comparative group. The cognitive level test (SRT II) and baseline test were administered before the instruction period. The summary writing test and SRT II test were administered after instruction. The results showed that there was a significant difference between two groups in cognitive levels and science concept understanding, whole argumentation and writing skills. However, there was no significant difference in some argumentation components, including warrant, backing, qualifier, rebuttal, metacongnitive question. The results of this study showed the possibility of implementation of SWH in science classroom teaching.

• Journal of Engineering Education Research
• /
• v.16 no.2
• /
• pp.31-36
• /
• 2013

This study analyzes results of current Capstone Design teaching and learning methods and makes suggestions based on its findings. To reach these conclusions, participants were 40 forth-year students in Capstone Design courses. In the results of t-test, the average of factors for the situated learning strategies were higher than those of the project based strategies. Also there were significant statistics in grades. Based on this study's findings, recommendations for effective teaching and learning strategies are made for the improvement of Capstone Design courses.

• Journal of Engineering Education Research
• /
• v.8 no.1
• /
• pp.99-112
• /
• 2005

Problem-Based Learning is focused, experiential learning organized around the investigation and resolution of messy, real-world problem. It is both a curriculum organizer and instructional strategy, two complementary processes. The PBL model developed in this study was composed the two components of Problem Design(curriculum organizer) and Problem Implementation(instructional strategy). The basic process of Problem Implementation Model were composed the 8 steps ; 1) the identification of problem, 2) the specification of problem, 3) the exploration and generation for solution, 4) the selecting of best idea, 5) the specific planning of best idea, 6) the implementation and realization, 7) the evaluation, 8) the applying and reflection.