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Few studies have dealt with students’ preconceptions of sounds. The current research employs Reiner et al. (2000) substance schema to reveal new insights about students’ difficulties in understanding this fundamental topic. It aims not only to detect whether the substance schema is present in middle school students’ thinking, but also examines how students use the schema’s properties. It asks, moreover, whether the substance schema properties are used as islands of local consistency or whether one can identify more global coherent consistencies among the properties that the students use to explain the sound phenomena. In‐depth standardized open‐ended interviews were conducted with ten middle school students. Consistent with the substance schema, sound was perceived by our participants as being pushable, frictional, containable, or transitional. However, sound was also viewed as a substance different from the ordinary with respect to its stability, corpuscular nature, additive properties, and inertial characteristics. In other words, students’ conceptions of sound do not seem to fit Reiner et al.’s schema in all respects. Our results also indicate that students’ conceptualization of sound lack internal consistency. Analyzing our results with respect to local and global coherence, we found students’ conception of sound is close to diSessa’s “loosely connected, fragmented collection of ideas.” The notion that sound is perceived only as a “sort of a material,” we believe, requires some revision of the substance schema as it applies to sound. The article closes with a discussion concerning the implications of the results for instruction. 相似文献
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Developing students' ability to interpret the vast amount of quantitative data they encounter on a daily basis has become a major task for today's educators. However, very little attention has been given to students' strategies of analyzing multivariate data. This study investigated how students interpret and analyze multivariate data organized in tables and the nature of external visual displays that they tend to create and use for this purpose. Ten middle school students were asked to think aloud while solving five problems demanding an analysis of data organized in tables. The students were then interviewed. Results indicated that (1) students based their conclusions on only part of the data; (2) students did not use either efficient or sufficient visual representations; (3) students did not apply mathematical operations efficiently; and (4) students referred to or built a context to the problem. The results of the current research may assist educators to design efficient curricula while being aware of and taking into account (1) students' difficulties in employing previously learned mathematical devices to analyze data, (2) students' skills in choosing appropriate and efficient visual representations to present and interpret the data, and (3) strategies employed by students in analyzing multivariate data. 相似文献
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There are a series of issues that people designing multimedia for educational purposes should consider. These include, among others, the salience of the voice of the author, the balance between the seductive nature of the medium and the substantive content of the message, and the way(s) in which the navigational tools either promote or constrain the learening and teaching of the content. This paper explores some of these questions and suggests how the answers to them depend on the pedagogic ideology and philosophy of the creators of the software. 相似文献
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Judah Pilch 《Journal of Jewish Education》2013,79(4):9-19
The popular image connoted by the term “Jewish education” is the teaching-learning process in the classroom of an all day school, yeshiva, and afternoon school. The students are typically children of elementary school age. As the image expands, it includes adolescents in the high school, college students in special courses, and adults in synagogue-sponsored adult education courses. Jewish education for professionals in Jewish communal service agencies has not been part of the public's perception of Jewish education. To be sure, the professional's primary concern is helping clients with their problems and his knowledge base is primarily geared toward that objective. The “Jewish” component in the preparation for professional practice has not been a primary concern of Jewish educators. 相似文献
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R. G. Tobin Sally Crissman Sue Doubler Hugh Gallagher Gary Goldstein Sara Lacy C. B. Rogers Judah Schwartz Paul Wagoner 《Journal of Science Education and Technology》2012,21(5):631-639
We report results and impressions from a three-day inquiry-based workshop for K-8 teachers, aimed at improving their understanding of energy from a science and engineering perspective. Results suggest that the teachers made significant gains in understanding and appreciation of important energy concepts, but their comprehension of some key ideas remained incomplete. The dissipation of energy into thermal energy of the environment proved to be a particularly difficult idea, and one that represents a serious obstacle to understanding the principle of the conservation of energy. 相似文献
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Judah Pilch 《Religious education (Chicago, Ill.)》2013,108(1)
(At the time of his death from a heart attack October 24, 1956, Leo L. Honor was Professor of Education at Dropsie College for Hebrew and Cognate Learning, Philadelphia, Pa.) 相似文献