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Comparing large lecture mechanics curricula using the Force Concept Inventory: A five thousand student study

机译:使用“力概念清单”比较大型演讲力学课程:五千名学生的研究

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摘要

The performance of over 5000 students in introductory calculus-based mechanics courses at the Georgia Institute of Technology was assessed using the Force Concept Inventory (FCI). Results from two different curricula were compared: a traditional mechanics curriculum, the Matter & Interactions (M&I) curriculum. Both were taught with similar interactive pedagogy. Post-instruction FCI averages were significantly higher for the traditional curriculum than for the M&I curriculum; the differences between curricula persist after accounting for factors such as pre-instruction FCI scores, grade point averages, SAT scores. FCI performance on categories of items organized by concepts was also compared; traditional averages were significantly higher in each concept. We examined differences in student preparation between the curricula, found that the relative fraction of homework, lecture topics devoted to FCI force, motion concepts correlated with the observed performance differences. Concept inventories, as instruments for evaluating curricular reforms, are generally limited to the particular choice of content, goals of the instrument. Moreover, concept inventories fail to measure what are perhaps the most interesting aspects of reform: the non-overlapping content, goals that are not present in courses without reform.
机译:使用“力概念清单”(FCI)评估了佐治亚理工学院5000多名学生在基于微积分的力学入门课程中的表现。比较了两种不同课程的结果:传统力学课程,物质与相互作用(M&I)课程。两者都通过类似的互动式教学法进行教学。传统课程的教学后FCI平均水平显着高于M&I课程;在考虑了诸如教学前FCI分数,平均成绩,SAT分数等因素后,课程之间的差异仍然存在。还比较了按概念组织的项目类别的FCI绩效;每个概念的传统平均水平均显着更高。我们检查了课程之间学生准备的差异,发现作业的相对分数,致力于FCI力的演讲主题,运动概念与观察到的成绩差异相关。概念清单作为评估课程改革的工具,通常仅限于工具的内容和目标的特定选择。此外,概念清单无法衡量改革中最有趣的方面:​​不重叠的内容,未经改革就不会出现在课程中的目标。

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