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This purpose of this study was to examine the ways in which three prospective teachers who had early opportunities to teach science would approach representing science content within the context of their student teaching experiences. The study is framed in the literature on pedagogical content knowledge and learning to teach. A situated perspective on cognition is applied to better understand the influence of context and the role of the cooperating teacher. The three participants were enrolled in an experimental teacher preparation program designed to enhance the teaching of science at the elementary level. Qualitative case study design guided the collection, organization, and analysis of data. Multiple forms of data associated with student teachers' content representations were collected, including audiotaped planning and reflection interviews, written lesson plans and reflections, and videotaped teaching experiences. Broad analysis categories were developed and refined around the subconstructs of content representation (i.e., knowledge of instructional strategies that promote learning and knowledge of students and their requirements for meaningful science learning). Findings suggest that when prospective teachers are provided with opportunities to apply and reflect substantively on their developing considerations for supporting children's science learning, they are able to maintain a subject matter emphasis. However, in the absence of such opportunities, student teachers abandon their subject matter emphasis, even when they have had extensive background and experiences addressing subject‐specific considerations for teaching and learning. © 2002 Wiley Periodicals, Inc. J Res Sci Teach 39: 443–463, 2002 相似文献
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We have designed a model for transformational science teaching focused on linking theory and practice through curriculum decision making that has been the framework for professional development sessions for middle-grade science teachers during the past 5 years. Interviews with teachers revealed that their experiences with curriculum development were of significant value in making decisions concerning the design of classroom environments. As teachers reflected on current research about teaching and learning, in collaboration with university scientists and science educators, they were informed by theoretical perspectives which held implications for their practice. Curriculum development became a vehicle for professional development and school reform; however, it was vital that the teachers were in clear communication with their administrators and communities concerning reform issues. Students and teachers from schools implementing the model and from control sites were interviewed to determine the model's influence on instructional practices and student attitude and achievement in science. The five-phase model for transformational science teaching is discussed here, accompanied by teacher comments about tensions experienced at each phase. This discussion is followed by an analysis of teacher and student interview data that reveals teachers' use of instructional strategies and students' attitudes toward science. Results and analysis of student performance on a mandated end-of-grade science test are also included. From this evidence, we recommend a new design for professional development opportunities for teachers that engages them in decision making as they reflect about the connections between theory and practice and the value of continually testing, revising, and reevaluating curriculum and instructional issues. J Res Sci Teach 34: 773–789, 1997. 相似文献
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Knowing the subject matter of a secondary‐school science subject 总被引：1，自引：1，他引：0
Zongyi Deng 《课程研究杂志》2013,45(5):503-535
This paper examines the fundamental yet largely neglected distinction between school subjects and academic disciplines in the discourse on teachers’ specialized subject‐matter knowledge. It analyses and critiques the curricular positions embedded in that discourse in the light of five possible relationships between school subjects and academic disciplines. Invoking Dewey’s logical‐psychological distinction and research findings, the paper argues that the subject matter of a secondary‐school science subject instead of the subject matter of its parent academic discipline lies at the heart of secondary‐school science teachers’ specialized subject‐matter knowledge. Knowing such subject matter entails knowing five intersecting dimensions: the logical, the psychological, the pedagogical, the epistemological, and the sociocultural. Implications are drawn concerning theorizing about what secondary‐school science teachers need to know about the subject matter they are expected to teach, subject‐matter preparation for teaching, and the development of secondary‐school science curriculum materials. 相似文献
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The teaching of the science topic sound, a popular topic in science instruction, is selectively analyzed over the past century using evidence excerpted from a prominent teacher practitioner journal (School Science And Mathematics). Shifting innovative recommendations on how teachers of science should teach the sound topic are identified in the categories of content and pedagogy. Historical connections to the scientific development of sound, identification of what constitutes the subject matter of sound, recommended general pedagogical strategies, and best practices for teaching strategies associated with the sound concept are examined. Discussion relates to the influence of contextual factors in a given time period (social and theoretical) on the design of curriculum materials used to guide instructional practice. One implication for science teacher education is the need for science teachers to develop an historically and philosophically grounded perspective by examining both the teaching practices on a science topic over an extended time and the historical scientific development of the science topic. 相似文献
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Exploring Saudi Computer Science Teachers’ Conceptual Mastery Level of Computational Thinking Skills
The Ministry of Education in Saudi Arabia implemented a new computer science curriculum in 2008. There was speculation that many computer science teachers did not possess sufficient knowledge of computational thinking needed to teach this subject. To investigate this topic, a quantitative research study was conducted with 55 male computer science teachers in Riyadh, Saudi Arabia. Results of the study revealed that most of the computer science teachers had a low conceptual level of computational thinking, and some of the teachers had misconceptions about the exact nature of computational thinking. Findings indicated that computer science teachers did indeed need more training in what computational thinking means and how to teach this subject. 相似文献
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This article explores science TEACHERS' perceptions of and consequent decisions about the development and implementation of a nontraditional science curriculum. It is a case-study analysis that examines the perceptions of 14 secondary teachers of a model science/technology/society (STS) curriculum designed to promote scientific literacy. Although the TEACHERS' decisions varied on whether to accept, alter, or reject the STS curriculum, they shared similar concerns about the development and implementation of this multidisciplinary curriculum. There existed a common set of five factors that the teachers believed to be critical, and that strongly affected their daily teaching decisions. This study offers insights into how science teachers perceive an STS curriculum, and the influence those perceptions have on their teaching decisions. It explores curricular issues from the frame of reference of teachers, the key factor in successfully implementing innovations. 相似文献
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Comfort M. Ateh 《Educational Assessment》2013,18(2):112-131
In evaluating teachers' instructional decisions during instruction, it is clear that the nature of their elicitation is crucial for student learning. When instructional decisions are informed by information about students' conceptual understanding, significant learning is possible. This article examined the elicitation practices of two high school science teachers who indicated that they made instructional decisions based on the elicited evidence of students' knowledge but whose elicitation practices were characteristic of low-level elicitation. The teachers focused on students' responses that used canonical terms and expressed acceptable knowledge. The teachers demonstrated low-level responsiveness because they did not have full access to students' knowledge. The elicited evidence of students' knowledge that was used in making instructional decisions was not representative of students' conceptual understanding. There was, thus, a mismatch between the teachers' perspectives about their formative assessment practice and what is considered effective formative assessment. 相似文献
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Adopting the concept that “decisions can be seen as argument-driven actions,” the purpose of this study was to apply the argumentation
structure raised by Stephen Toulmin (1958) to capture two science teachers' instructional decision-making mechanisms in their
teaching practices. The two case teachers were chosen because of their close estimations of their students' achievement outcomes
and both were in their transition stages from competent teachers to proficient ones. A science teaching observation coding
schedule (STOCS) was designed to be used in classroom observations, and all these quantitative data were collected to be converted
into four issues for the two teachers to justify their ways of teaching. A semi-structure interview was conducted to analyze
why and how these two case teachers made their instructional decisions. The results indicate that although they knew that
their students could not fully understand what they taught in the class, their teaching strategies were still teacher-dominated
modes. What really influenced their instructional decisions included external context factors (e.g., examination pressure,
subject contents, limited time and classroom management) and internal experiential factors (e.g., personal educated experiences,
beliefs and understandings of constructivism and inquiry). Finally, the authors suggest that science teachers' instructional
decision making mechanisms can be appropriately represented by case teachers' argumentations structure. 相似文献
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This study evaluates changes in teachers' instructional skills after participating in an intensive data-based decision making (DBDM) intervention for grade 4 teachers. Teachers were recorded three times prior to the intervention, and three times after the intervention, and all recordings were rated by four raters. The data was analyzed by means of advanced item response theory (IRT) techniques, combined with a generalizability model. Teachers significantly improved their DBDM related skills. Teachers’ initial basic teaching skills did not seem to matter for the extent to which teachers developed their DBDM related instructional skills. Suggestions for future research are presented. 相似文献
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Benjamin C. Herman Michael P. Clough Joanne K. Olson 《Research in Science Education》2017,47(1):161-184
This study investigated what 13 secondary science teachers at various nature of science (NOS) instruction implementation levels talked about when they reflected on their teaching. We then determined if differences exist in the quality of those reflections between high, medium, and low NOS implementers. This study sought to answer the following questions: (1) What do teachers talk about when asked general questions about their pedagogy and NOS pedagogy and (2) what qualitative differences, if any, exist within variables across teachers of varying NOS implementation levels? Evidence derived from these teachers’ reflections indicated that self-efficacy and perceptions of general importance for NOS instruction were poor indicators of NOS implementation. However, several factors were associated with the extent that these teachers implemented NOS instruction, including the utility value they hold for NOS teaching, considerations of how people learn, understanding of NOS pedagogy, and their ability to accurately and deeply self-reflect about teaching. Notably, those teachers who effectively implemented the NOS at higher levels value NOS instruction for reasons that transcend immediate instructional objectives. That is, they value teaching NOS for achieving compelling ends realized long after formal schooling (e.g., lifelong socioscientific decision-making for civic reasons), and they deeply reflect about how to teach NOS by drawing from research about how people learn. Low NOS implementers’ simplistic notions and reflections about teaching and learning appeared to be impeding factors to accurate and consistent NOS implementation. This study has implications for science teacher education efforts that promote NOS instruction. 相似文献
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Reform efforts are often unsuccessful because they failed to understand that teachers play a key role in making educational reforms successful. This paper describes a long‐term teacher professional development (PD) program aimed at educating and training teachers to teach interdisciplinary topics using case‐based method in science. The research objective was to identify, follow and document the processes that science teachers went through as they assimilated the interdisciplinary, case‐based science teaching approach. The research accompanied the PD program throughout its 3‐year period. About 50 teachers, who took part in the PD program, were exposed to an interdisciplinary case‐based teaching method. The research instruments included teacher portfolios, which contained projects and reflection questionnaires, classroom observations, teacher interviews, and student feedback questionnaires. The portfolios contained the projects that the teachers had carried out during the PD program, which included case studies and accompanying student activities. We found that the teachers gradually moved from exposure to new teaching methods and subject matter, through active learning and preparing case‐based team projects, to interdisciplinary, active classroom teaching using the case studies they developed. 相似文献
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Conclusion This study points to the fact that it would be practical to compare and assess the instructional strategies of exemplary and
novice elementary science teachers using a set of criteria derived from published teacher effectiveness studies. According
to this study there are differences ranging from significant to null between the instructional behaviors of exemplary and
novice teachers, and it indicates that it may not be appropriate to rely entirely upon the findings of individual teacher
effectiveness studies to prepare effective preservice teachers. Science teacher educators need to focus more directly on the
differences in instructional strategies between the exemplary and novice teachers and inquire further into determining the
causes for the differences. Hurd (1982) reported that about half of the elementary teachers studied believe that their preservice
education failed to prepare them to teach science in real classrooms. If what separates exemplary teachers from novices can
be clearly identified, then the science teacher educator’s task of preparing effective preservice teachers will be an easier
one. Then it would be also possible to develop effective preservice science teacher education programs more congruent with
exemplary science teaching practices and augment the existing science teacher education knowledge base through further research. 相似文献
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Research supports an explicit-reflective approach to teaching about nature of science (NOS), but little is reported on teachers’ journeys as they attempt to integrate NOS into everyday lessons. This participatory action research paper reports the challenges and successes encountered by an in-service teacher, Sarah, implementing NOS for the first time throughout four units of a community college biology course (genetics, molecular biology, evolution, and ecology). Through the action research cycles of planning, implementing, and reflecting, Sarah identified areas of challenge and success. This paper reports emergent themes that assisted her in successfully embedding NOS within the science content. Data include weekly lesson plans and pre/post reflective journaling before and after each lesson of this lecture/lab combination class that met twice a week. This course was taught back to back semesters, and this study is based on the results of a year-long process. Developing pedagogical content knowledge (PCK) for NOS involves coming to understand the overlaps and connections between NOS, other science subject matter, pedagogical strategies, and student learning. Sarah found that through action research she was able to grow and assimilate her understanding of NOS within the biology content she was teaching. A shift in orientation toward teaching products of science to teaching science processes was a necessary shift for NOS pedagogical success. This process enabled Sarah’s development of PCK for NOS. As a practical example of putting research-based instructional recommendations into practice, this study may be very useful for other teachers who are learning to teach NOS. 相似文献
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Ryan S. Nixon Benjamin K. Campbell Julie A. Luft 《International Journal of Science Education》2016,38(10):1636-1654
Science teachers need to understand the subject matter they teach. While subject matter knowledge (SMK) can improve with classroom teaching experience, it is problematic that many secondary science teachers leave the profession before garnering extensive classroom experience. Furthermore, many new science teachers are assigned to teach science subjects for which they do not hold a degree. This study investigates the SMK of new secondary science teachers assigned to teach chemistry in their first three years of teaching. These new teachers do not have the advantage of years of experience to develop their SMK and half hold a degree in biology rather than chemistry. This qualitative study explores the effects of holding a degree in the subject area one teaches as well as classroom teaching experience on teachers’ SMK for two chemistry topics, conservation of mass and chemical equilibrium. Qualitative analysis of semi-structured interviews indicated that the SMK of teachers who had a chemistry degree and more extensive classroom experience was more coherent, chemistry-focused, and sophisticated than that of teachers who lacked this preparation and experience. This study provides evidence that new science teachers’ SMK is influenced by both holding a degree in the subject area and having classroom experience. 相似文献
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《学校用计算机》2013,30(3-4):109-118
Summary While a constructivist approach to the integration of technology in the science curriculum can enable teachers to educate students on the cyclical nature of the research process and interrelate various scientific concepts, there are several considerations for educators must take to assure that it is done effectively. The authors provide a review of a project that was designed and implemented for high school science students that integrated the use of technology in a constructivist environment. This review summarizes the strengths and limitations of the project and provides educators with further considerations when implementing such a project. As educators become more familiar with what is required to successfully integrate technology in a constructivist environment, the limitations and obstacles that may be encountered can be limited. More research devoted to the use of computer technology to teach science process skills will bring teachers and students closer to harnessing the potential powers of both project-based learning strategies and the computer environment. 相似文献
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Barbara A. Crawford 《科学教学研究杂志》2007,44(4):613-642
This study examined the knowledge, beliefs and efforts of five prospective teachers to enact teaching science as inquiry, over the course of a one‐year high school fieldwork experience. Data sources included interviews, field notes, and artifacts, as these prospective teachers engaged in learning how to teach science. Research questions included 1) What were these prospective teachers' beliefs of teaching science? 2) To what extent did these prospective teachers articulate understandings of teaching science as inquiry? 3) In what ways, if any, did these prospective teachers endeavor to teach science as inquiry in their classrooms? 4) In what ways did the mentor teachers' views of teaching science appear to support or constrain these prospective teachers' intentions and abilities to teach science as inquiry? Despite support from a professional development school setting, the Interns' teaching strategies represented an entire spectrum of practice—from traditional, lecture‐driven lessons, to innovative, open, full‐inquiry projects. Evidence suggests one of the critical factors influencing a prospective teacher's intentions and abilities to teach science as inquiry, is the teacher's complex set of personal beliefs about teaching and of science. This paper explores the methodological issues in examining teachers' beliefs and knowledge in actual classroom practice. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 613–642, 2007. 相似文献
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Dale Baker 《理论付诸实践》2013,52(1):14-20
This article identifies instructional strategies, curricula, and organizational structures in the research literature that have been successful in encouraging girls' participation and achievement in science: science instruction in pre-kindergarten and kindergarten, relevant curricula that address girls' interests and provide opportunities for genuine inquiry and tinkering experiences, greater emphasis on physical science and the use of computers, integration of reading and writing in science, attention to how groups are formed in classrooms, activities that build self-efficacy, appropriate role models, messages that science is for everyone, and student-centered teaching. Special attention is given to the needs of children in preschool and kindergarten. In addition, research on the impact of single-sex classrooms and grouping is reviewed, along with the use of children's fictional literature to teach science. Implications derived from research literature include changes in what is taught, how it is taught, how teachers are prepared, and how these changes are paid for. 相似文献