摘要
选择学生比较熟悉的碘元素,结合海带提碘和精碘制碘酸钾工业生产情境展开复习教学,综合利用元素性质、反应原理探索含碘物质之间相互转化的最优路径,并对转化过程中的某些现象进行实验探究。通过设置有梯度的问题串引导学生在思考、分析、探究、归纳中完成综合型学习任务,实现知识规律化和体系化整合以及高阶思维培养。
The review teaching is carried out in combination with the situation of extracting iodine from kelp and the industrial production of potassium iodate from refined iodine. The optimal path of mutual transformation between iodine containing substances is explored by using the properties of elements and reaction principles, and some phenomena in the transformation process are explored experimentally. By setting up graded question chains, students can be guided to complete comprehensive learning tasks in thinking, analysis, exploration and induction, so as to realize the regular and systematic integration of knowledge and the cultivation of high-level thinking.
作者
史文杰
郭玉林
李冉
田巧云
SHI Wen-Jie;GUO Yu-Lin;LI Ran;TIAN Qiao-Yun(High School Affiliated to University of Foreign Economic and Trade,Beijing 100102,China;Beijing Chaoyang District Teaching and Research Center,Beijing 100028,China)
出处
《化学教育（中英文）》
CAS
北大核心
2021年第7期50-55,共6页
Chinese Journal of Chemical Education
关键词
真实复杂情境
实验探究
化学核心素养
高阶思维
iodine
real complex situation
experimental inquiry
chemistry core literacy
high-level thinking
