对科学教学实践的思考

本文以问卷调查为基本方法 ,了解中学师生对科学素养概念的认识 ,了解师生对我国现行物理课程及科学教育的评价 ;并对我国科学教学实践进行了思考 ,提出自己的一些观点。     

Definition in science teaching

Summary Definitions, I have suggested, have both a function and a form. The function pursued and the form used should depend on the situation and on the term being defined. In the situation described at the outset, Mr. Beta should probably have seen to it that a stipulation of some sort was given-just in order to get on with the task at hand. The stipulation might have been based upon a true reported definition-or it might not-depending on political considerations and the linguistic flexibility of the people concerned. Since no one involved could plausibly have been trying to embody a program in a definition of dough, a programmatic definition was not appropriate in that situation.Several different forms for a definition of dough might reasonably have been used, but in this case the old reliable classification form was probably best, because of its completeness, neatness, and brevity. Two reasonable alternatives are the equivalent-expression form and the range form. The synonym, example-nonexample, and operational forms were probably not appropriate.My main point is that there is not just one way to define. I hope that my delineation of some major possibilities and variations will help those who read this article to be flexible in handling problems of definition when they arise; and they arise more often than most people realize.An ealier draft of this article was presented at a colloquium at the University of Illinois in honor of Professor B. Othanel Smith at his retirement.     

Improving science teaching practices

A review of research relating to the problem of using research findings to improve classroom practice is presented. There are two aspects to this problem: familiarizing teachers with relevant research and identifying an aspect of teaching that needs to be improved. Research conducted in local settings appears to have most relevance to teachers and is more likely to be accepted by them. Studies indicate that research can have an impact on practice as long as teachers are involved in identification of problems in their class and are provided with a context in which they can learn the strategies to be implemented and understand why they are likely to improve teaching. Teachers need opportunities to practice teaching in peer groups where errors can be made without jeopardizing student learning; receive performance feedback; practice the strategies in their own classes; observe others teach; and discuss teaching with others. Strategy analysis, coaching and peer coaching are techniques which enable most of these criteria to be met and to facilitate science teaching improvement.     

Student teachers' attitudes toward science and science teaching

Attitudes toward science and science teaching are the subject of a mounting body of research on teachers. A widely used instrument developed by researchers in the United States appears to be relevant to the Australian context and was considered appropriate for measuring attitudes of preservice student teachers attending a College of Advanced Education in Brisbane. The findings suggest that much more effort needs to be concentrated on fostering desirable attitudes toward science and the teaching of science among future primary school teachers.     

Emotions in teaching environmental science

This op-ed article examines the emotional impact of teaching environmental science and considers how certain emotions can broaden viewpoints and other emotions narrow them. Specifically, it investigates how the topic of climate change became an emotional debate in a science classroom because of religious beliefs. Through reflective practice and examination of positionality, the author explored how certain teaching practices of pre-service science teachers created a productive space and other practices closed down the conversations. This article is framed with theories that explore both divergent and shared viewpoints.     

Science teaching in science education

Reading the interesting article Discerning selective traditions in science education by Per Sund, which is published in this issue of CSSE, allows us to open the discussion on procedures for teaching science today. Clearly there is overlap between the teaching of science and other areas of knowledge. However, we must constantly develop new methods to teach and differentiate between science education and teaching science in response to the changing needs of our students, and we must analyze what role teachers and teacher educators play in both. We must continually examine the methods and concepts involved in developing pedagogical content knowledge in science teachers. Otherwise, the possibility that these routines, based on subjective traditions, prevent emerging processes of educational innovation. Modern science is an enormous field of knowledge in its own right, which is made more expansive when examined within the context of its place in society. We propose the need to design educative interactions around situations that involve science and society. Science education must provide students with all four dimensions of the cognitive process: factual knowledge, conceptual knowledge, procedural knowledge, and metacognitive knowledge. We can observe in classrooms at all levels of education that students understand the concepts better when they have the opportunity to apply the scientific knowledge in a personally relevant way. When students find value in practical exercises and they are provided opportunities to reinterpret their experiences, greater learning gains are achieved. In this sense, a key aspect of educational innovation is the change in teaching methodology. We need new tools to respond to new problems. A shift in teacher education is needed to realize the rewards of situating science questions in a societal context and opening classroom doors to active methodologies in science education to promote meaningful learning through meaningful teaching.     

Developmentally-based insights for science teaching

From where should science teaching derive its inspiration? It is suggested here that if we are to have sustainable, rational progress in science teaching then practice must be theoretically based. Working from this position, Piaget's theory is examined for its teaching implications. Ten implications are derived and, in a second section of the paper, are used to generate a coherent program of classroom practice and research.     

History of science,individual development and science teaching

The existence of similarities between the ideas of modern students and those of early scientists have led to suggestions about how the history of science can be used to help students undergo similar transitions to those experienced by early generations of scientists. In this paper attention is focused not only on these similarities but also on some crucial differences between the processes and concepts or conceptual frameworks of these two groups of people. In the light of these similarities and differences some of the implications for producing and using historical material in the science classroom are discussed. Specializations: Physics education, concept development, history and philosophy of science and science teaching.     

Connecting university science experiences to middle school science teaching

Summary Science teachers naturally rely on their university science experiences as a foundation for teaching middle school science. This foundation consists of knowledge far too complex for the middle level students to comprehend. In order for middle school science teachers to utilize their university science training they must search for ways to adapt their college experiences into appropriate middle school learning experience. The criteria set forth above provide broad-based guidelines for translating university science laboratory experiences into middle school activities. These guidelines are used by preservice teachers in our project as they identify, test, and organize a resource file of hands-on inquiry activities for use in their first year classrooms. It is anticipated that this file will provide a basis for future curriculum development as the teacher becomes more comfortable and more experienced in teaching hands-on science. The presentation of these guidelines is not meant to preclude any other criteria or considerations which a teacher or science department deems important. This is merely one example of how teachers may proceed to utilize their advanced science training as a basis for teaching middle school science.     

科学史与科学教学的有效契合

在科学课程的教学中,利用科学史组织教学能极大地丰富科学课堂,对学生的科学素养的培养具有积极作用。