基于真实问题情境的课堂教学——以金属钠的性质与制备为例

Classroom Instruction Design Based on Real Problem Situation:Taking the Properties and Preparation of Metal Sodium as an Example

以"钠钾合金热消融法治疗癌症"为情境主线,围绕该法治疗癌症的原理、探索过程中遇到的困境以及成本高低3个核心问题探索金属钠的性质及制备,让学生在真实情境中学习化学知识和学科思维方式,提升能力。

Taking "sodium potassium alloy thermal ablation for cancer treatment" as the situational main line, this paper explores the nature and preparation of metal sodium around the principle of this method for cancer treatment, the difficulties encountered in the exploration process, and the cost level, so that students can learn chemical knowledge and disciplinary thinking mode in real situation, and improve their ability.