“多角度欣赏面心立方晶胞”教学设计  

Teaching Design to Appreciate the Characteristics of Face Centered Cubic Cell Structure from Multiple Perspectives

作　　者：周继敏 王涛 刘春鸽 ZHOU Ji-Min;WANG Tao;LIU Chun-Ge(Kaifeng Basic Education Teaching Research Office,Kaifeng 475000,China;Middle School Affiliated to Henan University,Kaifeng 475001,China)

机构地区：[1]开封市基础教育教学研究室,河南开封475000 [2]河南大学附属中学,河南开封475001

出　　处：《化学教育（中英文）》2021年第11期18-26,共9页Chinese Journal of Chemical Education

基　　金：2020年度河南省基础教育教学研究项目(JCJYB20260011)。

摘　　要：尝试利用"火花学院"App等在线交互资源,引导学生从立体几何及密置层堆积模型视角,观察、描述、绘制面心立方晶胞的正四面体填隙、正八面体填隙、三视图和沿体对角线投影图像,加深学生对以面心立方晶胞结构为基础的CaF2→金刚石晶胞、NaCl→钙钛矿晶胞结构的理解;再结合新型材料透明镁铝尖晶石晶体结构的探讨,了解晶体制备中的掺杂改性等常用方法,发展学生的微观探析能力和科学创新意识。This paper tried to use the online interactive resources such as"Spark Institute"to guide students to observe,describe and draw the regular tetrahedral interstitial,octahedral interstitial,three views and diagonal projection images of FCC cells from the perspective of solid geometry and dense layer stacking model,and deepen students’understanding of CaF2→diamond cell,NaCl→perovskite based on FCC cell structure.In order to develop students’ability of micro analysis and scientific innovation,we should understand the common methods of doping and modification in crystal preparation by combining with the discussion of crystal structure of transparent magnesia alumina spinel.

关 键 词：面心立方晶胞 正四面体填隙 正八面体填隙 三视图 体对角线投影图 

分 类 号：G633.8[文化科学—教育学]