思维导图在化学分析法中的应用——以样品金属组分钴含量的测定为例

The Exploration of Thinking Map in Chemical Analysis——Take the Determination of Cobalt Content in the Metal Component of the Sample as an Example

开展化学实验技术技能大赛,宗旨是通过实验操作实现对学生知识理解和技能掌握情况的评估。其中化学分析法主要对样品进行定量分析,实验考核时知识点多、操作性强,学生在实践中有一定的难度。根据化学分析法的特点,在实践教学中引入思维导图,以样品金属组分钴含量的测定为例,探讨思维导图在化学分析法实践中的应用。实践表明:思维导图有助于学生高效、准确掌握化学分析法,提升学生实验操作的规范性,提高实验效果。

The purpose of holding the chemical experiment technology skills contest is to evaluate the knowledge understanding and skill mastery of the contestants through the experimental operation.The chemical analysis method is mainly used for quantitative analysis of samples.The experimental examination has many knowledge points and strong operability,which makes students have certain difficulties in practice.According to the characteristics of chemical analysis,mind mapping is introduced into practical teaching,and the application of mind mapping in chemical analysis is discussed by taking the determination of cobalt content of the metal component of the sample as an example.The practice shows that the application of mind mapping in the practice of chemical analysis can help learners quickly and accurately grasp the chemical analysis method and complete the detection task efficiently and quickly.