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arXiv 1602.05727physics.ed-ph
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物理导论中助教对例题解答的信念

Teaching assistants' beliefs regarding example solutions in introductory physics

Shih-Yin Lin, Charles Henderson, William Mamudi, Chandralekha Singh, Edit Yerushalmi

摘要:

作为一个更大的研究的一部分,以了解教师的考虑,在物理学导论课程的学习和教学解决问题,我们调查了信仰的第一年研究生助教(TA)关于使用的例子解决方案在物理学导论。特别是,我们研究如何促进专家般的问题解决的目标是体现在考虑的研究生助教选择的例子解决方案。24个一年级研究生助教被要求讨论他们的目标,为学生提供示例解决方案。还向他们提供了不同的示例解决方案,并要求他们讨论他们对突出解决方案功能的偏好。助教的意识,偏好和实际做法相关的解决方案功能进行了检查,从文献中的专家般的问题解决方法建模的建议。本研究的结论是,帮助学生发展一种专家般的解决问题的方法的目标是许多助教的考虑使用的例子解决方案。然而,助教们没有注意到,也没有使用研究文献中描述的许多功能来支持这一目标。他们的信念和实践之间存在这种差距的一个可能的解释是,这些特征与另一套强大的价值观相冲突,这些价值观涉及保持学生参与,制定适当的标准,以及时间要求和成绩分配等务实的考虑。

英文摘要:

As part of a larger study to understand instructors' considerations regarding the learning and teaching of problem solving in an introductory physics course, we investigated beliefs of first-year graduate teaching assistants (TAs) regarding the use of example solutions in introductory physics. In particular, we examine how the goal of promoting expert-like problem solving is manifested in the considerations of graduate TAs choices of example solutions. Twenty-four first-year graduate TAs were asked to discuss their goals for presenting example solutions to students. They were also provided with different example solutions and asked to discuss their preferences for prominent solution features. TAs' awareness, preferences and actual practices related to solution features were examined in light of recommendations from the literature for the modeling of expert-like problem solving approaches. The study concludes that the goal of helping students develop an expert-like problem solving approach underlies many TAs' considerations for the use of example solutions. TAs, however, do not notice and do not use many features described in the research literature as supportive of this goal. A possible explanation for this gap between their belief and practices is that these features conflict with another powerful set of values concerned with keeping students engaged, setting adequate standards, as well as pragmatic considerations such as time requirements and the assignment of grades.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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