初中生化学前科学概念的探查——科学学习心理的研究

A Study on Junior's Preinstructional Conceptions about Chemistry ——Research on Psychology of Learning Science

本研究采用团体测查及个案访谈的方法 ,对 153名正式学习化学课之前的初三学生进行了化学前概念的探查。研究结果表明 ,学生对于化学的一些核心概念普遍存在个人的前科学概念认识。其中相异构想尤为突出。在调查的基础上 ,本研究还分析了学生化学前概念的特点、类型、形成原因 。

The exploration and transformation on students' preinstructional conceptions is a gotspot in the field of science learning psychology and science educational research. The systemic study on it hasn't been carried out in China, however. In this investigation, 153 juniors have a written test on their preinstructional conceptions about chemistry and some representative students were interviewed. The investigation indicated that it's very popular that the juniors own preinstructional conceptions on some basic concepts of chemistry, especially alternative frameworks. On the base of the investigation, the trait, types and sources of the conceptions are also discussed. Some instructional strategies are put forward to impel students to change their own conceptual frameworks and develop their understanding of chemical concepts.