基础科学教育应把握好范畴及边界——以中学化学中结晶(重结晶)问题的教学为例
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摘要
分析和阐述了结晶(重结晶)的基本原理,以课程标准为依据对结晶(重结晶)问题进行了教学要求的解析。认为,中学化学中的结晶(重结晶)问题的教学目标,不是结晶学的学科知识教学,也不是单纯的实验技能和方法培养,而应是围绕"溶解度及其应用"这一核心概念展开的辅助教学;认知边界应是溶解度概念在分离和提纯应用上的理解;把握基础科学教育内容的认知边界,是科学研究与科学教育、科学研究成果与科学教育素材的区别所在。
This paper elaborated the principle of crystallization(recrystallization)and analyzed the teaching requirements in high school chemistry on the basis of curriculum standards.It was concluded that the teaching goal of crystallization(recrystallization)in high school chemistry was not the subject knowledge teaching of crystallography or a simple training of experiment skills and methods,it should be the auxiliary teaching around the core concept of"solubility and its application";the cognitive boundary should be the understanding of solubility concept in separation and purification;agood grasp towards the cognitive boundary of basic science education content,was the difference between the scientific research and science education,scientific research achievement and science education material.
This paper elaborated the principle of crystallization(recrystallization)and analyzed the teaching requirements in high school chemistry on the basis of curriculum standards.It was concluded that the teaching goal of crystallization(recrystallization)in high school chemistry was not the subject knowledge teaching of crystallography or a simple training of experiment skills and methods,it should be the auxiliary teaching around the core concept of"solubility and its application";the cognitive boundary should be the understanding of solubility concept in separation and purification;agood grasp towards the cognitive boundary of basic science education content,was the difference between the scientific research and science education,scientific research achievement and science education material.
引文
[1]弗雷德里克·亚当斯,肯尼斯·埃扎瓦.认知的边界.黄侃,译.杭州:浙江大学出版社,2013:2
[2]黄鸣春,王磊.化学教育(中英文),2017,38(19):1-8
[3]王云生.福建基础教育研究,2017(4):4-6
[4]中华人民共和国教育部.义务教育化学课程标准(2011年版).北京:北京师范大学出版社,2012:20
[5]中华人民共和国教育部.普通高中化学课程标准(2017年版).北京:人民教育出版社,2018:11,40
[6]陈国雄,吴孙富.中学化学教学参考,2015(17):48-50
[7]钱逸泰.结晶化学导论.合肥:中国科学技术大学出版社,2005:252
[8]孙建新.化学教学,2006(6):17-19
[2]黄鸣春,王磊.化学教育(中英文),2017,38(19):1-8
[3]王云生.福建基础教育研究,2017(4):4-6
[4]中华人民共和国教育部.义务教育化学课程标准(2011年版).北京:北京师范大学出版社,2012:20
[5]中华人民共和国教育部.普通高中化学课程标准(2017年版).北京:人民教育出版社,2018:11,40
[6]陈国雄,吴孙富.中学化学教学参考,2015(17):48-50
[7]钱逸泰.结晶化学导论.合肥:中国科学技术大学出版社,2005:252
[8]孙建新.化学教学,2006(6):17-19