Elementary Students’ Learning of Materials Science Practices Through Instruction Based on Engineering Design Tasks
Elementary Students’ Learning of Materials Science Practices Through Instruction Based on Engineering Design Tasks
复制标题
小学生通过基于工程设计任务的教学学习材料科学实践
DOI：
10.1007/s10956-010-9225-8
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发表时间：
2010
影响因子：
4.4
通讯作者：
Hee
中科院分区：
文献类型：
--
作者：
Kristen B. Wendell;Hee
材料科学是研究物质的一门重要学科，它涉及材料的选择、测试和表征。本文探讨了如何三年级学生的材料科学性能的变化，在教学过程中的基础上，工程设计的挑战。我们进行了一个案例研究，9名学生参加了工程设计为基础的科学教学的目标是建立一个稳定的，安静的，热舒适的模型房子。材料科学实践的学习成果通过教学前后进行的临床访谈进行评估，学习过程通过学生在教学期间完成的练习册进行评估。访谈包括两个材料选择任务，设计一个坚固的凳子和一个绝缘的宠物栖息地。结果表明：（1）学生在两个材料选择任务上都有显著提高，（2）他们的收获与他们的练习册的完成程度显著正相关，（3）高度参与练习册的反思记录任务的学生在面试中表现出最大的进步。这些研究结果表明，练习册可以发挥重要作用，促进小学生通过真实的活动，如工程设计的科学学习。
Materials science, which entails the practices of selecting, testing, and characterizing materials, is an important discipline within the study of matter. This paper examines how third grade students’ materials science performance changes over the course of instruction based on an engineering design challenge. We conducted a case study of nine students who participated in engineering design-based science instruction with the goal of constructing a stable, quiet, thermally comfortable model house. The learning outcome of materials science practices was assessed by clinical interviews conducted before and after the instruction, and the learning process was assessed by students’ workbooks completed during the instruction. The interviews included two materials selection tasks for designing a sturdy stepstool and an insulated pet habitat. Results indicate that: (1) students significantly improved on both materials selection tasks, (2) their gains were significantly positively associated with the degree of completion of their workbooks, and (3) students who were highly engaged with the workbook’s reflective record-keeping tasks showed the greatest improvement on the interviews. These findings suggest the important role workbooks can play in facilitating elementary students’ learning of science through authentic activity such as engineering design.