• Title/Summary/Keyword: biology teaching

Search Result 153, Processing Time 0.024 seconds

British movement of 'Science and Citizenship' during the 1930-50s and L. Hogben's Science for the Citizen (1930-50년대 영국의 '과학식민의식' 운동과 L. Hogben의 Science for the Citizen)

  • Song, Jin-Woong
    • Journal of The Korean Association For Science Education
    • /
    • v.21 no.2
    • /
    • pp.385-399
    • /
    • 2001
  • In this study, the contexts and values of the movement called 'Science and Citizenship' during the 1930-50s are discussed in relation to the historical development of school science education in Britain and to the current STS movement in school science. A special attention is given to the activities and ideas of a then eminent biologist, Lancelot Hogben(1895-1975) who published a textbook-like science book, called "Science for the Citizen"(1938). From the beginning of the 20th century, there was a growing realization that British education system needed to be changed in order to provide school science teaching to a wider audience with more emphasis on the relevance, industrial and humanistic aspects of science. This was echoed by a lecture series called 'Science and Citizenship' which was reported in the School Science Review, then the only nationwide professional journal for science educators and by a group of professional scientists who had socialist ideas toward society. Hogben was one of the key member of the group and delivered the second lecture of 'Science and Citizenship', titled "Biological Instruction and education for Citizenship". Hogben's main idea, illustrated in this lecture as well as in "Science for the Citizen", was that science education should be a way of teaching citizen for promoting democratic society and to achieve that science need to be taught in more integrated, utilitarian and humanistic manners, for example by showing the usefulness, relevance, historical and democratic aspects of science. In addition, a summary of his own life and activities, the social background and socialist scientists of the time, and comparisons between 'Science and Citizenship' movement and the General Science movement in the UK as well as the progressive science education in the USA, and the STS education movement in 1980s are discussed.

  • PDF

Effects of Teaching Based on Driver's Conceptual Change Model on Rectifying High School Students' Misconception of Photosynthesis and Respiration (Driver의 개념변화 학습 모형을 적용한 수업이 고등학생들의 식물의 광합성과 호흡의 오개념 교정에 미치는 효과)

  • Kim, Dong-Ryeul
    • Journal of The Korean Association For Science Education
    • /
    • v.29 no.6
    • /
    • pp.712-729
    • /
    • 2009
  • This study aims to research high school students' misconception of botanic photosynthesis and respiration, and as the measure of rectifying the misconception, to develop the teaching program based on Driver's conceptual change model, applying it to classes and observing the effect. Selected as the research subject was sixty-six students in 1st year of a highschool located in Busan who had chosen Biology Learning as discretionary subject, with their conceptual level on botanic photosynthesis and respiration researched through tests in drawing and descriptive writing. As a consequence of applying drawing as a way of classifying the levels of students' misconception on photosynthesis and respiration, many students' drawings included their misconception caused by textbooks or scientists, but after application of Driver's conceptual change model, they drew scientific drawings including the fundamental factors of botanic photosynthesis and respiration such as light, carbon dioxide, water, glucose, oxygen, leaf, chloroplast, mitochondria, stoma, and energy. Likewise, as a result of the descriptive writing test implemented for researching the students' conception on the various aspects of botanic photosynthesis and respiration, many students in the pretest showed misconception on the point of time and location at which botanic photosynthesis and respiration occur, botanic nutrient, the role of a leaf in photosynthesis, and the relation between botanic photosynthesis and respiration, but after teaching based on Driver's conceptual change model, their misconceptions on photosynthesis and respiration were rectified to a high degree.

Comparison between Training and Participating Achievements of Delegetes of Korean Students I - Theoretical Part - (국제생물올림피아드 한국 대표 학생들의 훈련 성적과 국제생물올림피아드에서의 성적 비교 분석 I -이론 분야-)

  • Shim, Kew-Cheol;Lee, Hyun-Uk;So, Keum-Hyun;Chang, Nam-Kee
    • Journal of The Korean Association For Science Education
    • /
    • v.18 no.4
    • /
    • pp.627-633
    • /
    • 1998
  • Achievements of Korean delegate students who attend on the 9th International Biology Olympiad(IBO) were compared with those of IBO participants for the 4th, 5th and 7th theoretical tests. It was predicted that four Korean delegates won medals in the 9th IBO on the basis of the average percentages of correct answer and the shifting patterns of achievement. And achievemens of four delegates during delegates training period were compared with that in the 9th IBO. Mean perecntages of theoretical part of them were 78.15%, 77.16%, 80.97% and 76.99% respectively, and total mean percentage was 78.32%. Their achievement was level for silver medalist. It was 86.56% on the average that they had achieved in the 9th IBO. This result was more than achievement in delegates training. Their percentages of achievement order were 90.84%, 97.71%, 82.44% and 70.99% respectively. One of them won gold medal and the others won silver medals. It was needed to develop effective teaching program for biology gifted-students and training preparing for IBO.

  • PDF

Pre-service Biology Teachers' Perspectives about Biological Competition and Adaptation (생물학적 경쟁과 적응에 대한 예비 생물 교사의 인식)

  • Jo, Jiseon;Cha, Heeyoung;Yang, Pilseung
    • Journal of The Korean Association For Science Education
    • /
    • v.36 no.5
    • /
    • pp.801-814
    • /
    • 2016
  • The purpose of this study is to find out whether pre-service biology teachers' biological meanings of competition and adaptation is the same as everyday meanings to understand natural selection and evolution. Fifty three pre-service biology teachers answered written tests and thirteen of them were interviewed. The tests on general meanings on competition and adaptation, tests on biological meanings on competition and adaptation and tests on natural selection were administered. Questions on semi-structured interviews were composed of only biological meanings about competition and adaptation. Analyzing data through four steps, pre-service biological teachers' general meanings on competition and adaptation were compared with the definitions of Korean dictionary and compared with biological definitions. Pre-service teachers' alternative conceptions about biological competition and adaptation were classified and the alternative conceptual types were checked when explaining natural selection and evolution. They realized competition is battle for intention or purpose like everyday meaning of competition. However, they didn't realize adaptation happen in the population level. They thought that adaptation, like in everyday life meaning, is getting suitable to environment for survival on an individual level. By relating adaptation to evolution, they thought that long-lasting adaptation become evolution. This study has significance with respect to suggesting the alternative concepts of competition and adaptation based on effective evolution teaching from constructivism viewpoint and highlighting the importance of the concepts of biological competition and adaptation, which have been concerned rarely for a long time.

A Study on the Teaching/Learning Strategies and Materials for the Enhancement of Scientific Inquiry Skills of High School Students : Part II, Instructional Materials (고등학교의 과학적 탐구력 신장을 위한 과학 학습지도 방법과 자료의 개발에 관한 연구 II)

  • Cho, Hee-Hyung;Lee, Moon-Won;Cho, Young-Sin;Jee, Chan-Soo;Kang, Soon-Hee;Park, Jong-Yoon;Hur, Myung;Kim, Chan-Jong
    • Journal of The Korean Association For Science Education
    • /
    • v.15 no.2
    • /
    • pp.133-148
    • /
    • 1995
  • This study has been performed in order to achieve three objectives. They are as follows: To analyze, based on the research literatures, the nature of scientific inquiry ability and the characteristics of its constitutive elements. To identify inquiry skills and techniques essential to such areas as physics, chemistry, biology. and earth science. To develop instructional models and materials for enhancing inquiry ability on the part of high school students. It was found in the study that the scientific inquiry was interpreted in terms of different meanings according to the viewpoint of the person who are interested in the nature of science. The scientific inquiry has been viewed as the process of knowledge formation, scientific method, inquiry process or process skills depending on the epistemological, methodological, educational perspectives, respectively. It was also identified that certain kind of skills or techniques would be used for inquiry in only one specific area of the science. This study drew a conclusion based on the findings that the skills and techniques will effectively be learned when those are taught with specific knowledge in each area of the science. Reported in this paper are the materials developed, for fostering scienctific inquiry skills on the part of the high school students. The materials were developed, using two themes of a theoretical-abstract chemistry topic and a conceptual-concrete biology topic. Those materals were designed for an experiment and an observation, respectively.

  • PDF

Content Analysis of the Elementary Science Textbooks Between USA and Korea for leaching the Returnee Students (귀국학생 지도를 위한 미국과 한국의 초등 과학과 교과서 내용 분석)

  • 한영욱;김대홍
    • Journal of Korean Elementary Science Education
    • /
    • v.21 no.1
    • /
    • pp.1-11
    • /
    • 2002
  • The purpose of the study is to compare and analyze the elementary science textbooks' contents between the United States(Science Horizons) and Korea for teaching the Returnee students. The analyzed contents are the name of chapters, the number of chapters, the page amounts of chapters, the structure of chapters and the studying time of chapters. The results of this study are : 1. Korean science textbook's number is 20. 'Science Horizons' has 6. Korean science textbook's total number of chapter is 58, 'Science Horizons' is 75. Korean science textbook's total number of page is 1,60.3, 'Science Horizons' is 2,106. So 'Science Horizons' has more number of chapter and page than Korean textbooks. 2. The ratio of Korean science textbook's contents is as follows: physical area, 22.4%; chemistry area, 12 1%: biology area, 39.6%; earth science area, 25.9%. But the ratio of 'Science Horizons' science textbook's contents is as follows: physical area,21.3%; chemistry area,4.0%; biology area, 46.7%; earth science area. 28.0%. 3. In case of 'Predicting the Weather' chapter, Korean science textbook has 3 lessons, 17 themes and 11 activities, whereas' Science Horizons' has 5 lessons, 10 themes and 5 activities. 4. The themes or chapters of 'Science Horizons' to propose deeper than Korea are about animals and plants, energy and movement, weather and season. our body, and earth and outer space. In case of Korean textbook are about chemistry area, the rock and volcanic activity and electric circuit. There are some differences between Korean and the United States' elementary science curriculum and textbook's contents. And the returnee students has many troubles to adapt korean science curriculum, textbooks and educational environment,;. Therefore, teachers should know and understand that, and help them.

  • PDF

Analyses of Elementary School Students' Interests and Achievements in Science Outdoor Learning by a Brain-Based Evolutionary Approach (뇌기반 진화적 접근법에 따른 과학 야외학습이 초등학생들의 흥미와 성취도에 미치는 영향)

  • Park, Hyoung-Min;Kim, Jae-Young;Lim, Chae-Seong
    • Journal of Korean Elementary Science Education
    • /
    • v.34 no.2
    • /
    • pp.252-263
    • /
    • 2015
  • This study analyzed the effects of science outdoor activity applying a Brain-Based Evolutionary (ABC-DEF) approach on elementary school students' interest and academic achievement. Samples of the study were composed of 3 classes of 67 sixth graders in Seoul, Korea. Unit of 'Ecosystem and Environment' was selected as a object of the research. Textbook- and teachers' guidebook-based instruction was implemented in comparison group, brain-based evolutionary approach within classroom in experimental group A, and science outdoor learning by a brain-based evolutionary approach in experimental group B. In order to analyze the quantitative differences of students' interests and achievements, three tests of 'General Science Attitudes', 'Applied Unit-Related Interests', and 'Applied Unit-Related Achievement' were administered to the students. To find out the characteristics which would not be apparently revealed by quantitative tests, qualitative data such as portfolios, daily records of classroom work, and interview were also analyzed. The major results of the study are as follows. First, for post-test of interest, a statistically significant difference between comparison group and experimental group B was found. Especially, the 'interests about biology learning' factor, when analyzed by each item, was significant in two questions. Results of interviews the students showed that whether the presence or absence of outdoor learning experience influenced most on their interests about the topic. Second, for post-test of achievement, the difference among 3 groups according to high, middle, and low levels of post-interest was not statistically significant, but the groups of higher scores in post-interest tends to have higher scores in post-achievement. It can be inferred that outdoor learning by a brain-based evolutionary approach increases students' situational interests about leaning topic. On the basis of the results, the implications for the research in science education and the teaching and learning in school are discussed.

A Study of the Kinds and Frequency Characteristics of Descriptors in the Articles Related to Scientific Literacy (과학적 소양 관련 논문에서 서술자의 종류와 빈도 특성 연구)

  • Lee, Myeong-Je
    • Journal of Korean Elementary Science Education
    • /
    • v.29 no.4
    • /
    • pp.401-413
    • /
    • 2010
  • This study analyzed the kinds and frequencies of descriptors in 154 articles in ERIC data base on the 4th day of January in 2010. The titles of the articles includes the words, 'scientific literacy'. As each descriptor is constituted of two words and over, in this study the first word in the descriptor was defined as 'restrictive word' and the rest word(s) as 'target word(s)'. The results are as follows. First, the descriptors which show high frequencies of target words are the traditionally important themes of scientific literacy education. Target words which show relatively high frequency are 'education', 'literacy', 'instruction' and 'countries'. Low frequency word is 'curriculum', which has various restrictive words and represents wide differentiation. Second, among the descriptors which show low frequencies of target words, relatively high frequency descriptors are '(and)society', 'change', 'secondary education', 'concepts', and 'biology', which have been given more attention in scientific literacy research than the rest descriptors. Third, the number of the descriptors that shows largely distributed pattern A, which happens over 15 years continuously, is over the half of all analyzed descriptors, which shows that they have been the major objectives in researches about scientific literacy. Most descriptors of pattern A shows normal distribution of frequency or the trends of increasing frequency as the time is nearer. Fourth, The descriptors are divided into four groups according to the time span. Each research trends are as follows. In later 80s, the research which emphasizes the importance of the sociality and technology in all level school science curriculum. In later 90s the research for educational change of inquiry-centered science curriculum which considers technological literacy in social contexts. In earlier 2000s the research that scientists and science teachers develop science curricula mostly related to scientific principles and thinking in chemistry and biology especially. In later 2000s case studies which relates teaching methods and science process activities to students' attitudes, scientific concepts and curricula.

  • PDF

Analysis of Mistakes in Photosynthesis Unit in Biology II Textbooks and Survey of Biology Teachers' Recognition on them (생물 II 교과서 광합성 단원의 오류 분석 및 생물 교사의 오류 인지 조사)

  • Park, Hae-Kyung;Yoon, Ki-Soon;Kwon, Duck-Kee
    • Journal of Science Education
    • /
    • v.32 no.1
    • /
    • pp.33-46
    • /
    • 2008
  • The purpose of this study was to know whether or not any wrongful description or simple errors were in photosynthesis unit of Biology II textbook under 7th national curriculum and if so, to know whether or not high school teachers recognized and corrected properly the mistakes. The mistakes in photosynthesis unit of text books were determined by the comparison with several reference books and through examination by three plant physiologists in 8 different Biology II textbooks. After the mistakes were analysed, the survey using contents of textbook containing the mistakes was conducted on high school teachers teaching Biology II. As a result, 48 mistakes were determined in 13 subjects. As many as four mistakes were found even in one subject in a certain textbook and a same mistake was found repeatedly in several textbooks. The survey result showed that the teachers who pointed exactly the mistakes out corrected properly, however, the percentage of these ones out of 35 teachers replied to survey was less than 50%. The ratios of correction out of total number of responses were high in question #6 (43%), #4-3 (40%), and #1-2 (32%) which were containing a simple mistake in graph, a wrong word and a wrong picture, respectively. But, no one pointed out and made correction in question #5-1 and #5-2 which were containing Z scheme of light reaction without the legend of vertical axis that should be explained as electron energy or standard reduction potential. The result indicates the possibility that the mistakes in photosynthesis unit of Biology II textbook can be corrected and teached properly by teachers may be low. In order to reduce the possibility that students may have misconceptions about photosynthesis, the list of print's errors should be provided to the teachers and/or the training program and/or workshop for in-service high school biology teachers was recommended.

  • PDF

A Study on Error Analysis & Hedging Expressions of Medical Research Abstracts

  • Lee, Eun-Pyo
    • English Language & Literature Teaching
    • /
    • v.13 no.1
    • /
    • pp.47-66
    • /
    • 2007
  • Error analysis plays an important role because understanding the types of errors can give a better opportunity for both teachers and learners to recognize the nature of errors and ways of preventing them. This study looks into errors in the medical research abstracts written by 26 Koreans and also examines hedging expressions since hedging can be a necessary tactic in which the validity and objectivity of their claims is conveyed. The hedging expressions of these research abstracts are to be compared with those of Hyland (1996)'s study done on ENL academic writers of cell and molecular biology. The results of the study reveal that wrong word choice was the most commonly occurred errors, followed by prepositions, articles, adding and missing words. Many of these errors, except articles, seemed to derive from the native language interference. There were also run-on sentences, subject & verb agreement, tense, word order and minor errors. As for hedging, ESL medical writers seemed to use very limited hedging expressions and inappropriately strong modals. It is recommended to take variations of hedges using epistemic adverbials and adjectives to present their claims in a more valid and polite way. Limited verb choice was also noted. As for preventing or minimizing similar future errors, collocation practices in ESP focused on commonly used medical related words and expressions can be effective.

  • PDF