• 제목/요약/키워드: biology teachers

검색결과 208건 처리시간 0.017초

교사들이 제시한 학생들의 생물 오개념 (Students' Alternative Conceptions in Biology Education Proposed by Biology Teachers.)

  • 정완호;차회영;최진복
    • 한국과학교육학회지
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    • 제12권1호
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    • pp.23-33
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    • 1992
  • For the purpose of identifying alternative conceptions in biology held by both elementary and secondary school students, an open-ended questionnaire in the six areas of biology was devised and administered to both 21 elementary school science teachers and 32 secondary biology teachers. Results have Shown that 65 and 183 items were introduced by elementary and secondary school teachers respectively Our findings will be useful to many researchers who have concerned about the issus of misconceptions in biology as well as many biology teachers who have had difficulties in biology teaching due to students' preconceptions.

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한국의 초등 과학 교과서 생명영역에 나오는 탐구 주제 및 생물 재료에 대한 초등 예비교사들의 인식 분석 (The Analysis of Pre-service Elementary Teachers' Perception on Biology Inquiry Subjects, and biology Materials in the Korea Elementary School Science Textbook)

  • 김동렬
    • 수산해양교육연구
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    • 제29권3호
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    • pp.719-731
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    • 2017
  • The aim of this study was to analyze a group of pre-service elementary teachers experience on the cognitive terms of biology inquiry subjects, and experience on living materials related with the domain of life in the Korea elementary school science textbook. Firstly, elementary school pre-service teachers had the confidence of inquiry subjects related with the domain of life such as 'when we take breath what will happen in human body?' and 'Can we make the model of human body?' But they did have the most diffidence of 'The search for pieris rapae, a cabbage butterfly's life', 'Can we grow the little creature?' The reason why pre-service elementary teachers had diffidence of comprehending experiment procedure and planning ability was that 'they focused on understanding the scientific concepts instead of planning experiments by themselves', and 'they carried out the least amount of experiments' Secondly, elementary school pre-service teachers had never experienced biology materials related with the domain of life in the Korea elementary school biology science textbook such as 'tradescantia reflexa', 'Caddis larva', 'hydrilla verticillata', and 'Plantain lily.' According to the findings obtained from the study, the reason why they had never seen the biology materials was that they had the least opportunity of immediately observing life creatures due to memorization-intensive classes.

예비 생물교사의 과학의 본성과 인간의 기원에 대한 인식 조사: 종교배경을 중심으로 (Pre-Service Biology Teachers' Views of the Nature of Science and the Origins of Human Beings: Focusing on Religions)

  • 강경리
    • 과학교육연구지
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    • 제34권2호
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    • pp.246-259
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    • 2010
  • 본 연구에서는 기독교를 믿는 예비 생물교사와 종교가 없는 예비 생물교사의 과학의 본성과 인간의 기원에 대한 관점의 비교를 통해 예비 생물교사의 교육시 중점을 두어야 될 부분을 제시하고자 하였다. 검사지는 과학의 본성(과학의 특징, 과학적 방법, 과학적 지식, 과학과 종교의 관련성)의 4개 영역에서 8개 문항, 인간의 기원(최초 생물의 기원, 인간의 기원, 인간의 도덕적 본성, 지구의 역사)의 4개 영역에서 6개 문항으로 총 14개의 문항으로 구성되었다. 과학의 본성에 대한 문항에서 객관적 평가가 가능한 6개 문항의 예비교사의 이해도는 59.7%였다. 낮은 이해도 항목으로 보아 과학적 방법의 일련의 과정, 즉 사실, 법칙, 가설, 이론의 이해에 문제가 있음을 나타내었다. 종교별로는 기독교를 믿는 예비교사와 종교가 없는 예비 교사 사이에 큰 차이가 없었다. 인간의 기원에 대한 6개 문항에 대해 과학적 진화 개념을 가진 예비교사의 비율은 49.6%였다. 기독교를 믿는 예비교사가 종교가 없는 예비교사에 비해 14% 정도 낮았다. 기독교를 믿는 예비 생물교사와 종교가 없는 예비 생물교사 간에 유의미한 차이가 나타난 문항은 진화와 창조 영역 중 창조론에 기초한 인간의 기원과 유신 진화론에 기초한 인간의 기원에 대한 문항이었다. 종교에 따라 유의미한 차이가 나타난 진화와 창조 영역의 결과를 통해 예비 생물교사의 인간의 기원에 대한 이해에 종교가 영향을 미치고 있다는 사실을 알 수 있었다. 예비 생물교사 교육프로그램 구성 시 법칙과 이론을 포함하는 과학적 지식의 이해 뿐만 아니라 전통주의 과학관과 상대주의 과학관에 대한 비교, 대조를 통하여 과학지식이 형성되고 변화되는 과정에 대한 이해를 높일 방법을 강구할 필요가 있다. 효과적인 진화교육을 위하여 예비 생물교사를 대상으로 진화론과 창조과학의 이해를 돕기 위한 적절한 교육프로그램이 필요함을 시사한다. 또한 효과적인 진화교육을 위하여 창조론을 믿는 학생이 갖기 쉬운 과학의 본성과 관련된 오개념을 강조할 필요가 있다.

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동물 해부실험에 대한 중학교 교사와 학생들의 인식 (The Awareness of Secondary Teachers and Students toward Animal Dissection in Biology Class)

  • 이선경;이재영;김인호
    • 한국과학교육학회지
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    • 제16권4호
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    • pp.451-460
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    • 1996
  • The ethical issue is one of the most important themes in both science and environmental education. Especially related to the right of other species, animal dissection has been brought about two contradictory attitudes. In spring 1996, a survey was conducted to assess the status of animal dissection in secondary schools and the awareness of 94 biology teachers and 422 secondary students toward animal dissection. And the meaning of animal dissection in biology class was discussed in terms of environmental education. The findings were as follows: First, most of students(96.6%) had participated once or twice to animal dissection experiments(eg. fish, frog, shellfish, cuttlefish and chicken). And about half of teachers (57.4$\sim$64.9%) and some students(41.9%) felt ethical conflict in animal dissection. Second, many teachers(81.0%) and students(87.1%) thought that animal dissection was effective method to achieve the goal of biology education, but they needed more consideration on the respect for life in animal dissection experiment. Third, many teachers(88.3%) had students, who objected to animal dissection, participate obligatorily or passively. Fourth, teachers and students thought that audio-visual media such as video(teachers 63.5%, students 39.7%), computer simulations(teachers 31.7%, students 28.1%) and models(teachers 22.2%, students 24.1%) could be effective as alternatives. These findings suggest that animal dissection experiment, although it is needed to achieve the goal of biology education, requires careful consideration on the rights of animal and the respect for life, and alternatives for students who object to animal dissection in biology class.

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Complete Mitochondrial Genome of a Troglobite Millipede Antrokoreana gracilipes (Diplopoda, Juliformia, Julida), and Juliformian Phylogeny

  • Woo, Hyung-Jik;Lee, Yong-Seok;Park, Shin-Ju;Lim, Jong-Tae;Jang, Kuem-Hee;Choi, Eun-Hwa;Choi, Yong-Gun;Hwang, Ui Wook
    • Molecules and Cells
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    • 제23권2호
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    • pp.182-191
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    • 2007
  • The complete mitochondrial genome of a troglobite millipede Antrokoreana gracilipes (Verhoeff, 1938) (Dipolopoda, Juliformia, Julida) was sequenced and characterized. The genome (14,747 bp) contains 37 genes (2 ribosomal RNA genes, 22 transfer RNA genes and 13 protein-encoding genes) and two large non-coding regions (225 bp and 31 bp), as previously reported for two diplopods, Narceus annularus (order Spirobolida) and Thyropygus sp. (order Spirostreptida). The A + T content of the genome is 62.1%, and four tRNAs ($tRNA^{Ser(AGN)}$, $tRNA^{Cys}$, $tRNA^{Ile}$ and $tRNA^{Met}$) have unusual and unstable secondary structures. Whereas Narceus and Thyropygus have identical gene arrangements, the $tRNA^{Thr}$ and $tRNA^{Trp}$ of Antrokoreana differ from them in their orientations and/or positions. This suggests that the Spirobolida and Spirostreptida are more closely related to each other than to the Dipolopoda. Three scenarios are proposed to account for the unique gene arrangement of Antrokoreana. The data also imply that the Duplication and Nonrandom Loss (DNL) model is applicable to the order Julida. Bayesian inference (BI) and maximum likelihood (ML) analyses using amino acid sequences deduced from the 12 mitochondrial protein-encoding genes (excluding ATP8) support the view that the three juliformian members are monophyletic (BI 100%; ML 100%), that Thyropygus (Spirostreptida) and Narceus (Spirobolida) are clustered together (BI 100%; ML 83%), and that Antrokoreana (Julida) is a sister of the two. However, due to conflict with previous reports using cladistic approaches based on morphological characteristics, further studies are needed to confirm the close relationship between Spirostreptida and Spirobolida.

An Analysis of the Concepts that Should be Taught to Achieve Class Objectives of Genetics Unit in Biology

  • Lim, Soo-Min;Kim, Jeong-A;Sonn, Jong-Kyung;Jeong, Jae-Hoon;Kim, Young-Shin;Song, Ha-Young
    • 한국과학교육학회지
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    • 제29권7호
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    • pp.767-782
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    • 2009
  • The researchers who are studying biology and teachers who are teaching biology think that the genetics-related concepts are highly significant than other concepts in biology. With such background, researches on the identification of major concepts have been under way to guide in biology class. Minimal research has been carried out, however, on what concepts should be taught to achieve the specific objectives of the class in relation to the unit of genetics in middle and high school. Accordingly this study was designed to determine the concepts of genetics that should be taught to achieve the objectives of the genetics unit in secondary school. For this purpose 5 instructional objectives of the genetics unit on the 9th grade and 4 instructional objectives of Biology I were selected and the concepts that were taught to achieve class objectives. The survey was conducted among 114 science teachers from middle schools and 85 biology teachers from high schools. The results indicated that 9.1 and 10.2 concepts on average were taught in the 9th grade and in Biology I respectively. Moreover statistical difference in the number of concepts that were taught according to the teachers' teaching experiences appeared among the middle school teachers (p<.05). But such statistical difference did not appear among the high school teachers (p>.05). Furthermore the concepts for the 9th grade consist of the basic genetics concepts although Biology I concepts were integrated and advanced contents for same concepts. Thus this finding suggests that concepts of genetics units to be taught in middle and high school were in linkage.

Preservice Biology Teachers' Learning to Teach Science through Science Methods Courses

  • Kim, Sun Young
    • 한국과학교육학회지
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    • 제32권9호
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    • pp.1427-1442
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    • 2012
  • This study tracked the changes of preservice biology teachers' pedagogical knowledge along with science teaching efficacy throughout sequentially developed science methods course I and II over two consecutive semesters. Two courses, science methods course I and II, aimed these preservice teachers to discuss the notion of science teaching with teaching and learning theories, to learn science instructional models, to design lessons utilizing science instructional models, and to eventually implement microteaching. The preservice teachers were mainly engaged in cooperative instructional planning activities through science methods course I, and engaged in cooperative microteaching activities through the science methods course II. This study revealed that preservice teachers successfully developed pedagogical knowledge and science teaching efficacy after two science methods courses. The science methods course I where cooperative instructional planning activities occurred helped the preservice teachers to improve pedagogical knowledge but not science teaching efficacy. Based on their pedagogical knowledge development, then, these preservice teachers increased science teaching efficacy belief after completion of the science methods course II.