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Development of a construct map to describe students’ reasoning about introductory quantum mechanics
Physical Review Physics Education Research ( IF 2.6 ) Pub Date : 2020-06-29 , DOI: 10.1103/physrevphyseducres.16.010144
Umberto Scotti di Uccio , Arturo Colantonio , Silvia Galano , Irene Marzoli , Fabio Trani , Italo Testa

We present the development and validation of a construct map addressing introductory quantum mechanics topics at the high school level, as a subset of a larger learning progression on quantum mechanics. Topics include energy quantization, photon absorption and emission, the Heisenberg uncertainty principle, atom stability, orbitals, wave function, and electronic properties of materials. To validate the hypothesized construct map, we designed a multiple-choice questionnaire and a 14-h teaching-learning sequence (TLS) designed in strict relation with the levels of the construct map. Twenty-three classes of Italian students (ages 17–18, N=408) were involved in the study: about half (N=200) were exposed to the TLS, while N=208 students received a typical textbook instruction on the same topics targeted by the construct map. Data were analyzed using a 1D Rasch model. Results show that the proposed construct map consistently describes the increasing abilities of students when exposed to instruction. In particular, when exposed to the TLS activities, students more likely move towards the upper levels of the construct map. Findings have implications for instruction designed to support students’ learning in quantum mechanics at the high school level.

中文翻译:

绘制构造图以描述学生关于量子力学入门的推理

我们介绍了高中阶段解决入门量子力学主题的构建图的开发和验证,作为量子力学上较大的学习进展的子集。主题包括能量量化,光子吸收和发射,海森堡不确定性原理,原子稳定性,轨道,波函数和材料的电子特性。为了验证假设的构建图,我们设计了一个选择问卷和一个与构建图的水平严格相关的14小时教学序列(TLS)。23个意大利学生班(17-18岁,ñ=408)参与了该研究:大约一半(ñ=200)暴露给TLS,而 ñ=208学生接受了有关构造图所针对的相同主题的典型教科书教学。使用一维Rasch模型分析数据。结果表明,所提出的构造图一致地描述了学生在接受指导时不断提高的能力。特别是,在参加TLS活动时,学生更有可能朝着构造图的更高层次发展。研究结果对旨在支持学生在高中阶段的量子力学学习的教学具有启示意义。
更新日期:2020-06-29
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