目标驱动项目式化学实验教学设计与实践——以粗盐提纯实验为例

Project-Based Chemical Experiment Teaching Design and Practice Driven by Goals—Taking the Experiment of Purifying Coarse Salt as an Example

摘要: 实验教学对学生的批判性思维形成具有重要的意义，目标驱动项目式实验教学能有效促进教学效果的提升。文章以粗盐提纯实验为例，采用项目式教学方法，在现有实验的基础上，利用目标引导学生进行科学思维发散。针对粗盐提纯实验中的结晶现象设计项目式教学模式，考察不同条件下晶体的结晶过程，利用目标激发学生对实验理论的思考和思维发散，培养学生发散思维和批判性思维的形成。

Abstract: Experimental teaching plays a significant role in the formation of students’ critical thinking. Project-based experimental teaching driven by goals can effectively enhance the teaching effect. This article takes the crude salt purification experiment as an example, adopting the project-based teaching method. Based on the existing experiments, it uses goal guidance to expand students’ critical thinking. A project-based teaching model is designed for the crystallization phenomenon in the crude salt purification experiment, to investigate the crystallization process under different conditions. The goal is used to stimulate students’ thinking and divergent of their minds about the experimental theory, promoting the formation of students’ divergent thinking and critical thinking.