大学化学 >> 2025, Vol. 40 >> Issue (4): 346-352.doi: 10.12461/PKU.DXHX202405146

化学实验 上一篇    下一篇

基于控制变量思想的化学科普实验设计与实践——以“银离子回收”科普实验项目为例

景一丹1, 张效敏1, 徐楠2   

  1. 1 湖南师范大学化学化工学院, 长沙 410081;
    2 湖南师大附属三一云谷实验学校, 长沙 410199
  • 收稿日期:2024-05-22 录用日期:2024-10-02 发布日期:2025-04-25
  • 通讯作者: 张效敏 E-mail:zhangxm@hunnu.edu.cn
  • 基金资助:
    湖南省学位与研究生教学改革研究项目(202201002018)

Design and Practice of Chemical Science Popularization Experiments Based on the Concept of Controlling Variables: Taking the “Recovery of Silver from Silver-Containing Wastewater” Science Popularization Project as an Example

Yidan Jing1, Xiaomin Zhang1, Nan Xu2   

  1. 1 College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;
    2 SANY Yungu Experimental School Attached to HNNU, Changsha 410199, China
  • Received:2024-05-22 Accepted:2024-10-02 Published:2025-04-25
  • Contact: Xiaomin Zhang E-mail:zhangxm@hunnu.edu.cn

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摘要： 科普教育活动不仅需要传播科学知识，更需要传播科学思想方法。以“银离子回收”科普项目为例，简要介绍蕴含基于控制变量思想的趣味科普实践活动方案的实施，从认识科学变量、认知控制变量方法、体会运用控制变量思想三个层次逐层深入，逐步提升大众对控制变量思想的认识水平，从而提升科学素养水平。同时通过对含银废水的毒性、污染性与银的回收处理方法与价值的讨论，也提升了公众的绿色环保理念和资源循环利用的价值理念。

关键词: 科普活动, 科学思想方法, 含银废水, 回收银, 控制变量

Abstract: Science popularization activities should not only disseminate scientific knowledge but also promote scientific thinking methods. This study explores and implements chemical science popularization activities that embody these scientific ideas and methods. Using the project “Recovering Silver from Silver-Containing Wastewater” as an example, we briefly introduce the implementation of an engaging science popularization activity plan centered around the concept of controlling variables. This approach aims to enhance the public’s understanding of controlling variables through three levels: recognizing scientific variables, understanding the method of controlling variables, and experiencing the application of this concept. This progression ultimately aims to improve scientific literacy. Additionally, discussions on the toxicity and pollution of silver-containing wastewater, along with recovery and treatment methods and their values, foster the public’s awareness of green environmental protection and the principles of resource recycling.

Key words: Popularization of science, Scientific thinking methods, Silver-containing wastewater, Silver recovery, Controlling variables