• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제27권2호
• /
• pp.195-210
• /
• 2024

Researchers and curricula continue to call for proof to serve a central role in learning of mathematics throughout kindergarten to grade 12 and beyond. Despite its prominence and recognition gained during past decades, proof is still a stumbling block for both teachers and students. Research efforts have been made to address issues related to teaching and learning of proof. An area in which such research efforts have been made is analysis of curriculum material (i.e. textbook analysis) with a focus on proof. This study is another research effort in this area of research through investigating the guidance offered in curriculum materials with the following research question: What is the nature (e.g., kinds of content knowledge, pedagogical content knowledge) of guidance is offered for teachers to implement proof tasks in grade 8 geometry textbooks? Results indicate that the guidance offered for proof tasks are concerned more with content knowledge about the content-specific instructional goals than with pedagogical content knowledge which supports teachers in preparing in-class interactions with students to teach proof.

• 혜화의학회지
• /
• 제18권2호
• /
• pp.119-129
• /
• 2009

The purpose of this study is to find out relationship between "Yakjing" and the textbook of herbology. Conclusions are as below. 1. The herbs of accumulation of poison(結毒) generally show cold nature and have a reducing effect, which resemble the method of treating accumulation and stagnation. 2. The herbs of muscular contracture(攣) show sweet taste and tonifying effect, fall on the spleen and the stomach and have acts of treating urgency, relieving pain and conciliating, which resemble the method of treating urgency(急)and pain from accumulation and stagnation. 3. The herbs of water poisons(水毒) are categorized as those of cold nature and dampness and we can find out that water poisons is related to cold nature. 4. The herbs of feverish feeling(煩) treat heat. 5. The herbs of cardiothoracic part have an effect of regulating Gi and treat the phlegm disease.

• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제15권2호
• /
• pp.127-140
• /
• 2011

"Statistical literacy" is important to be an effective citizen ([Gal, I. (2005). Towards "probability literacy" for all citizens: Building blocks and instructional dilemmas. In: G. A. Jones (Ed.), Exploring probability in school: Challenges for teaching and learning (pp. 39-63). New York: Springer]). Probability and statistics has been connected with real context and can be used to stimulate students' creative abilities. This study aims at identifying the extent that textbooks in three countries include experimental probability concepts and non-routine, open-ended, application and contextual problems. How well textbooks reflect real application situations is important in the sense that students can employ probability concepts when solving real world problems. Results showed that three textbook series did not mention experimental probability. Furthermore, all of text-books had more routine, close-ended, knowing, and non-contextual problems.

• 한국자동차공학회논문집
• /
• 제15권4호
• /
• pp.154-160
• /
• 2007

The experimental system, developed in this research, is a teaching material that trains and practices automobile electric circuit in technical high school. This system consists of a textbook, 15 kinds of instruments and 62 kinds of 'Flash' animations. Textbook includes automobile electric circuits and experimental process. Instruments have 23 kinds of drills. Its is composed of electrical relays, motors, switches, light bulbs, electrical lines and power unit so on. 'Flash' animation displays an electrical current flow on circuits actually. Both Dacum method and ISD skill have been conducted to analysis job and design syllabus. The experimental system have been implemented on technical high school class to evaluate its objectivity and effect. It is expected that this system can contribute to studying of car service.

• 한국항공운항학회지
• /
• 제28권4호
• /
• pp.102-116
• /
• 2020

The existence of appropriate teaching materials in foreign language is very essential especially if it is related to safety. Among them, the importance of textbooks is more emphasized because there is no suitable education or curriculum for EPTA (English proficiency test of aviation). A good textbook not only presents the right direction to study but also provides an efficient way to learn. This research exploded how well textbooks for EPTA are organized and analyzed current pilots' responses whether the textbooks are suitable for preparing EPTA through the questionnaire. The conclusion drawn is that textbooks for EPTA should be designed to encourage current and pre-pilots to learn how to communicate with controllers efficiently and briefly, and also should provide proper guide lines for preparing EPTA.

• Educational Technology International
• /
• 제16권1호
• /
• pp.58-83
• /
• 2015

Digital textbooks draw attention as a new format of educational material, using the advantages of information technology; this innovative learning tool requires consideration as a part of successful and effective learning. The main purpose of the article is to investigate the mediating role of self-regulation between digital literacy and learning outcomes (academic performance and learning motivation) when using digital textbooks as a learning tool in Middle School English. Both descriptive and regression analysis were used as data analyses methods. The main findings of this study were as follows: first, digital literacy and self-regulation significantly predicted academic performance and learning motivation; second, self-regulation fully mediated between digital literacy and academic performance; third, self-regulation partially mediated between digital literacy and learning motivation. The research results proved the effects of digital literacy and self-regulation on the learning outcomes and mediating role of self-regulation between digital literacy and learning outcomes. These results help to design and implement effective lessons when using a digital textbook in Middle school English.

• 대한수학교육학회지:학교수학
• /
• 제12권4호
• /
• pp.473-491
• /
• 2010

TIMSS 2007에서 싱가포르는 우리나라에 비해 전반적인 성취도는 낮았지만, 싱가포르가 보여준 우수한 성적은 여러 국가에서 싱가포르의 교육을 연구하는 계기를 만들어주었다. 이 논문에서는 싱가포르가 우리나라에 비하여 높은 정답률을 나타낸 '분수와 소수', '비, 비례식, 백분율', '측정'의 3가지 주제 중 '비, 비례식, 백분율'의 영역을 비교 분석하였다. TIMSS 2007의 공개문항을 4가지의 평가 목표에 따라 살펴본 후 우리나라와 싱가포르 교과서에서 이를 어떻게 다루고 있는지 비교 분석하여 다음과 같은 차이점이 있음을 알 수 있었다. 첫째, 싱가포르 교과서가 비 개념을 1년 먼저 도입하고 있었다. 둘째, 싱가포르 교과서는 '비, 비례식, 백분율'의 주제에 대하여 학년별로 반복 심화하여 다루고 있으며 그 양적인 면에서도 많았다. 셋째, 비 개념의 도입과 정의에 차이가 있었다. 넷째, 비례식을 도입하는 방식이 달랐으며, 싱가포르는 이를 실생활에서 활용할 수 있는 문제를 많이 제시하고 있었다. 이러한 차이점을 바탕으로 우리나라 교육과정과 교과서에 적용해 볼 수 있는 시사점을 제시하였다.

• 해양환경안전학회:학술대회논문집
• /
• 해양환경안전학회 2018년도 공동국제학술발표회
• /
• pp.13-13
• /
• 2018

• 디지털융복합연구
• /
• 제8권3호
• /
• pp.79-93
• /
• 2010

본 연구는 디지털교과서의 정보품질과 시스템품질이 학습만족도에 미치는 영향에서 인지양식 관련요인들, 특히 장의존 및 장독립적 요인이 조절효과를 가지는지 검증하고자 하였다. 연구대상은 서울광역시에서 거주하는 초등학교 5학년, 6학년학생들이다. 이러한 연구를 위해 현재 디지털교과서 연구시범학교에서 학습에 참여하고 있는 학습자 325명으로부터 자료를 얻어 실증적 연구를 수행하였다. 연구가설의 검증을 통해 나타난 결과는 다음과 같다. 디지털교과서의 학습만족이 정보품질과 시스템품질의 만족도에 영향력을 받을 때, 인지양식 변수들의 상호작용에 의해서 긍정적인 조절효과를 받고 있음이 확인되었다.

• 한국수학교육학회지시리즈A:수학교육
• /
• 제50권4호
• /
• pp.467-487
• /
• 2011

The purpose of this study is to analyze of gifted students' improvement on mathematical attitude and problem-solving ability through project-based materials in science high school. For this study, research questions are established as follows. 1. Does the project-based materials-used instruction have a positive effect on improving problem-solving ability? 2. Does the project-based materials-used instruction have a positive effect on improving mathematical attitude? To solve these research questions, this study employed a survey and interview type investigation for gifted students' mathematical attitude and problem-solving ability. A subject of classes were randomly selected among the 11th grader in D science high school and designated one class as the experimental group and the other class as the control group. Twelve hours of the project-based materials-used instruction and the traditional textbook-oriented instruction had been carried out in each class. Findings on this study are as follows: First, the project-based material-used instruction is shown to be more effective in enhancing problem-solving ability than the traditional textbook-oriented instruction. Second, the project-based material-used instruction is shown to be more effective in improving mathematical attitude than the traditional textbook-oriented instruction.