初中生对简单电路的错误前概念及其纠正的研究

Research on the Pre-misconception about Simple Circuits and Its Correction for Junior Middle School Students

通过二段式测验,对初中生在解决简单电路问题过程中的实际认知情况进行调查和分析,研究学生认为影响灯泡亮度的主要因素及高频出现的错误前概念.在此基础上总结初中生认知结构中普遍存在的关于简单电路的典型错误前概念,为教师促进学生实现概念转变提供一些具有针对性的参考建议.

Through the two-tier diagnostic test,the actual cognitive situation of the junior middle school students when solving the simple circuit problems was tested and analyzed.We investigated the main factors which would influence the brightness of the bulb in the students′opinions,as well as the pre-misconceptions appeared frequently.Based on these results,the common pre-misconceptions about simple circuits in the cognitive structure of junior middle school students were summarized.We also provided the suggestions for teachers to promote students to achieve conceptual change.