Investigating Multimedia Case Studies as a Tool for Pre-Service Teacher Development

[9725512]杜尔对数学教学改革的呼吁表明，教师应该反思自己的实践，通过创建课程序列来指导学生的数学发展，这些课程序列支持学生努力构建越来越复杂的理解。然而，方法课程的职前教师没有反思的实践，如果有的话，很少有观察学生随着时间发展数学概念过程的第一手经验。因此，本提案旨在通过创建、实施和研究三个基于cd的案例研究来填补这一空白，这些案例研究集中在初中和高中以改革为基础的课堂中教授的实际课程序列。本项目的两个目标是：(1)更好地理解如何使用多媒体案例研究来支持职前数学教师有效实践的发展，以及(2)完善我们的设计理论，详细阐述使案例更有效地促进这种反思的具体方面。* * *

9725512 Doerr Calls for reform in mathematics teaching suggest that teacher should reflect on their own practice and guide their students' mathematical development by creating lessons sequences that support students' efforts to construct increasingly sophisticated understandings over time. However, pre-service teachers in methods courses do not have a practice on which to reflect, and have little, if any, first-hand experience observing the processes by which students develop mathematical conceptions over time. As a result, this proposal has been written to fill this void by creating, implementing, and researching three CD-ROM based case studies centered on actual lessons sequences taught in reform-based classrooms at the middle and secondary level. The two goals of this proposed project are (1) to better understand how multimedia case studies can be used to support the development of effective practice among pre-service mathematics teachers, and (2) to refine our design theory to elaborate specific aspects that make cases more effective in promoting such reflection. ***