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This article presents the results of a mixed methods study that used the Draw-a-Scientist Test as a visual tool for exploring preservice teachers’ beliefs about scientists. A questionnaire was also administered to 165 students who were enrolled in elementary (K–8) and secondary (8–12) science methods courses. Taken as a whole, the images drawn by preservice teachers reflected the stereotype of a scientist as a man with a wild hairdo who wears a lab coat and glasses while working in a laboratory setting. However, results indicated statistically significant differences in stereotypical components of representations of scientists depending on preservice teachers’ program and previous science experiences. Post degree students in secondary science methods courses created images of scientists with fewer stereotypical elements than drawings created by students in the regular elementary program. 相似文献
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As people attempt to make sense of the world, they develop personal knowledge structures. These structures often contain misconceptions—inaccurate
or incomplete information—that are highly resistant to change because existing knowledge networks must be restructured to
accommodate counterintuitive information in a process known as conceptual change. Since textbooks are the dominant resource
for science instruction in most classrooms, text-based methods of facilitating conceptual change need to be examined. Since
the mid-1980 s, researchers have investigated the conceptual change potential of refutation text, a text structure that includes
elements of argumentation and that has been described as one of the most effective text-based means for modifying readers’
misconceptions. In this paper, twenty years of refutation text research in science and reading education is reviewed and then
a secondary analysis of those results is conducted to explore developmental aspects of the efficacy of refutation text. Although
a developmental relationship was not revealed, two decades of research indicate that reading refutation text rather than traditional
expository text is more likely to result in conceptual change. 相似文献
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Robert J. Anthony Christine D. Tippett Larry D. Yore 《Research in Science Education》2010,40(1):45-64
Science literacy leading to fuller and informed participation in the public debate about science, technology, society, and
environmental (STSE) issues that produce justified decisions and sustainable actions is the shared and central goal of the
Pacific CRYSTAL Project. There is broad agreement by science education researchers that learners need to be able to construct
and interpret specific scientific discourses and texts to be literate in science. We view these capabilities as components
in the fundamental sense of science literacy and as interactive and synergetic to the derived sense of science literacy, which
refers to having general knowledge about concepts, principles, and methods of science. This article reports on preliminary
findings from Years 1, 2, and 3 of the 5-year Pacific CRYSTAL project that aims to identify, develop, and embed explicit literacy
instruction in science programs to achieve both senses of science literacy. A community-based, opportunistic, engineering
research and development approach has been utilized to identify problems and concerns and to design instructional solutions
for teaching middle school (Grades 6, 7, and 8) science. Initial data indicate (a) opportunities in programs for embedding
literacy instruction and tasks; (b) difficulties generalist teachers have with new science curricula; (c) difficulties specialist
science teachers have with literacy activities, strategies, genre, and writing-to-learn science tasks; and (d) potential literacy
activities (vocabulary, reading comprehension, visual literacy, genre, and writing tasks) for middle school science. Preinstruction
student assessments indicate a range of challenges in achieving effective learning in science and the need for extensive teacher
support to achieve the project’s goals. Postinstructional assessments indicate positive changes in students’ ability to perform
target reading and writing tasks. Qualitative data indicate teachers’ desire for external direction and the need for researchers
to expand the literacy framework to include oral discourse. A case study of teachers’ use of a specific literacy task and
its influence on students revealed indications of robustness and effectiveness. Experiences revealed procedural difficulties
and insights regarding community-based research and development approaches. 相似文献
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Ruthanne Tobin Christine D. Tippett 《International Journal of Science and Mathematics Education》2014,12(2):423-443
Research indicates that differentiated practices enhance the likelihood of meeting the needs of students who find literacy learning challenging (Tobin & McInnes, 2008; Tomlinson, 2003). The aim of the professional development project described here was to leverage these findings and to build the foundation for future research exploring if similar outcomes occurred in science. We wanted to examine teachers’ perceptions regarding planning and implementing Differentiated Instruction (DI) in science. Our workshops emphasized multimodal possibilities, so the project draws on research indicating that elementary students are able to demonstrate their understanding of science concepts in a variety of ways (Tippett, 2003) as well as research on DI in the context of language and literacy instruction. The study yielded insights about in-service teachers’ perceptions of the possibilities and potential barriers presented by DI in science. 相似文献
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Christine D. Tippett 《International Journal of Science Education》2016,38(5):725-746
The move from learning science from representations to learning science with representations has many potential and undocumented complexities. This thematic analysis partially explores the trends of representational uses in science instruction, examining 80 research studies on diagram use in science. These studies, published during 2000–2014, were located through searches of journal databases and books. Open coding of the studies identified 13 themes, 6 of which were identified in at least 10% of the studies: eliciting mental models, classroom-based research, multimedia principles, teaching and learning strategies, representational competence, and student agency. A shift in emphasis on learning with rather than learning from representations was evident across the three 5-year intervals considered, mirroring a pedagogical shift from science instruction as transmission of information to constructivist approaches in which learners actively negotiate understanding and construct knowledge. The themes and topics in recent research highlight areas of active interest and reveal gaps that may prove fruitful for further research, including classroom-based studies, the role of prior knowledge, and the use of eye-tracking. The results of the research included in this thematic review of the 2000–2014 literature suggest that both interpreting and constructing representations can lead to better understanding of science concepts. 相似文献
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Tippett Christine D. Milford Todd M. 《International Journal of Science and Mathematics Education》2017,15(1):67-86
Science, technology, engineering, and mathematics (STEM) in early childhood education is an area currently given little attention in the literature, which is unfortunate since young children are natural scientists and engineers. Here, we outline our mixed-methods design-based research investigation of a pre-kindergarten (Pre-K) classroom where two early childhood educators are incorporating STEM activities. We used a protocol consisting of a list of potential characteristics of effective and appropriate STEM curriculum for young children to structure our classroom observations. We also used semi-structured interviews, focus groups, and a questionnaire to collect data from multiple stakeholders (teachers, students, and parents), to examine how STEM activities were incorporated in Pre-K, to explore students’ engagement with STEM concepts, and to investigate parents’ opinions about STEM in general and STEM as experienced by their children. Our findings provide support for the inclusion of STEM-based learning experiences for young children. 相似文献
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