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WORKSHOP G: New ways of teaching physics concepts and Teacher Training | |
| Leader: Dean Zollman & Sanjay
Rebello, USA Rapporteur: Anna De Ambrosis, Italy |
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The topic for this workshop is very broad and general. In spite of the general nature of the topic four general themes emerged from the panel papers and round table discussion related to the workshop. Three of the themes are related to concepts which can be taught to students and for which teachers will need preparation to teach properly. These themes are preparing teachers to teach
The fourth theme was the cooperation of universities and
schools in the teaching of physics and the preparation of teachers. Important problems The participants generally agreed that contemporary physics should be taught in the schools. Reasons for including these topics include
A major concern is the inertia of the physics curriculum. The present introductory course which usually follows, approximately, the historical development of physics from Galileo to about the end of the 19th Century seems to be somewhat universal. A survey of the physics topics in this general seems to fill whatever time is available. While some attempts to change the order of topics in this course have had limited success, the vast majority of courses follow this pattern. Many of our participants felt that the separation
of physics into “classical” and “modern” was
artificial and represented a major problem. By removing this separation
and introducing topics when they would fit logically into a sequence
of study we could provide for a better logical development and integrate
contemporary topics the existing courses without dealing directly with
major changes in the present order of topics. Some participants felt that an integrated approach was not appropriate. They believed that students needed to realize are large the fundamental paradigm shift that occurred in the early part of the 20th Century was. By integrating topics thorough out the course the teachers would not communicate to the students the magnitude of this major change in our way of thinking. Thus, neither the teachers nor the students would have a complete picture of how counter intuitive quantum physics is. The level of formalism was also discussed at some length. Some participants felt that students must see a rather complete mathematical formalism before they could understand contemporary physics. Others were very comfortable with a more conceptual approach. In particular, some participants emphasized connecting the conceptual study of contemporary physics to applications and technology. They believed that these applications provide motivation for the students and a context in which they can learn contemporary topics. Then, a conceptual approach provides an appreciation and understanding of the role of physics in 21st Century life. Issues related to teacher preparation seem to be dependent on the nation in which the teachers are prepared. For example, in Italy most physics teachers have a strong background in formal mathematics while in Kansas USA the teachers of physics have frequently studied biology as their primary topic. Thus, they have a rather weak background in mathematics. A important issue is that teachers may not know contemporary physics well and thus be uncomfortable teaching it. Alternatively, they will have studied quantum physics in a traditional physics curriculum and will conclude that it is too hard for students to learn. The way to teach teachers about the pedagogy related to contemporary physics is another important issue. Some of the workshop participants reported good success in integrating the teaching of the content with introducing pedagogical methods. A few participants felt that the students needed to struggle with and learn the ideas first then learn about the pedagogy later. Others were constrained by the administrative structure of their universities so that the pedagogy and content must be separated. A question was raised about whether one could use a constructivist approach in teaching these concepts. Possible solutions The pedagogical approach that has developed over the last twenty years needs to be continued and improved. While it has been primarily developed using the context of classical physics, it should be used in all areas of physics. In the teaching of contemporary physics we need to identify topics which can be best taught and learned using this pedagogy. Then the focus of teaching contemporary physics should be these topics. The choice of such topics may differ depending on instructor preferences and pedagogical style. However, the important point is that the shift in pedagogy should be small when the concepts change from classical to contemporary. Many of the workshop participants felt that the best pedagogy involved a phenomenological approach to teaching contemporary physics. However, such an approach does not necessarily mean that students should do the historically important experiments such and the photoelectric effect or Franck-Hertz experiment. These experiments can be difficult to complete and somewhat abstract to analyze. Thus, simpler experiments which focus on key observations may be most appropriate. These experiments should provide a coherent approach to the most important ideas in contemporary physics. In selecting the content and pedagogy for contemporary we need to keep in mind that our future teachers are not “little physicists.” That is: they are not likely to become researchers in physics and need the skills of the researcher. Instead, they need content and a teaching model that will be appropriate for secondary classes. The level of the content and the amount of mathematical formalism is not well known at the present time. Research needs to be conducted to determine the appropriate balance between conceptual learning and mathematical formalism which is needed for secondary teachers to successfully teach contemporary physics. The teachers need enough formalism so that they can answer students’ questions or, at least, know when they do not know the answer. However, the amount of formalism should not be so great that no time is available for developing a conceptual and phenomenological understand of the topics. Finally we realize that technology, particularly visualization, can play a fundamental role in preparing teachers. If teachers learn through appropriate technology, they are likely to use technology appropriately in their own teaching. Summary On the topic of preparing future teachers to help students learn contemporary we have many opinions, many of which are supported by our experiences in preparing teachers and working directly with secondary school students. We feel that the topics of contemporary physics must be taught for the reasons stated above. However, we recognize the methods and even the topics taught to typical physics students are not appropriate for secondary students or for their teachers. We know from experience and research that recent advances in the pedagogy of physics, which is based on research, is effective for teaching classical topics. We believe that these same methods with only minor modifications will prove to be equally valuable for teaching understanding of contemporary topics. Thus, we advocate the use of these methods and research to assess their effectiveness. We also feel that the separation of the classical and “modern” topics should be looked at carefully. For at least some of the contemporary topics this separation may prove to be artificial and may even hamper learning. Research into the best arrangement of the curriculum for both secondary students and their future teachers is needed. University-School Cooperation Our discussion of university-school cooperation focused on descriptions of successful program in several countries, including Italy, USA, Slovenia and India. From these discussions a number of common positive aspects and several concerns arose. These issues can help other university faculty and students develop and succeed in working with school teachers and students. The positive aspects which emerged from our discussions are:
Concerns that we need to keep in mind when developing university-school cooperative programs include:
We these ideas in mind we feel that the foundation of university-school programs can help with the education of school teachers and their students as well as increase the understanding of university faculty and students about pedagogical and physics issues. Relation to Seminar goals The Seminar is focusing on the best ways to prepare future and in-service
teachers so that they can help their students learn physics. Our discussions
have focused on an area which many physicists think is the most difficult
to teach to either teachers or their students and on the cooperation between
schools and universities. While we have not reached any clear conclusions,
we have raised a number of questions, suggested several practices, and
identified areas in which research on teaching and learning can help make
decisions in the future. We have also identified positive characteristics
of programs and concerns that we need to be aware of. |
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