“物质结构与性质”模块复习的微项目教学——植物补铁剂的成分、使用与发展  

Micro-Project Teaching for Review of“Material Structure and Properties”Module:Composition,Use and Development of Plant Iron Supplements

作　　者：梁德娟[1] 于守丽 LIANG De-Juan;YU Shou-Li(RDFZ Chao Yang School,Beijing 100028,China;Beijing Chaoyang District Academy of Educational Sciences,Beijing 100021,China)

机构地区：[1]中国人民大学附属中学朝阳学校,北京100028 [2]北京市朝阳区教育科学研究院,北京100021

出　　处：《化学教育（中英文）》2024年第9期24-29,共6页Chinese Journal of Chemical Education

基　　金：北京市教育科学“十四五”规划2022年度立项课题“高中化学常态教学聚焦核心知识的微项目开发与实践研究”(课题编号:CDDB22314);北京市朝阳区教育科学“十四五”规划2022年度立项课题“促进学生化学学习能力和思维能力发展的教学实践研究”(课题编号:2022YX018)。

摘　　要：以“植物补铁”为微项目,进行选择性必修模块“物质结构与性质”与其他模块间融合的综合复习。2课时的微项目学习包括3个核心环节:确定植物补铁剂成分、研究补铁剂的保存与使用、改进补铁剂的结构与性质。基于实验证据与文献资料,研究硫酸亚铁晶体溶于水的过程中结构与性质的变化,建立宏观层面分析外界条件对化学反应影响的模型与微观层面分析物质结构的模型,最终应用模型对植物补铁剂进行性质调控与结构改良,深刻体会物质结构研究的价值,发展科学精神与创新能力。Taking“plant iron supplement”as a micro-project,this paper carried out a comprehensive review of the optional compulsory module“material structure and properties”.The micro-project learning during the two classes included three core links:determining the composition of plant iron supplements,studying the preservation and use of iron supplements,and improving the structure and properties of iron supplements.Based on the experimental evidence and literature,the changes of structure and properties of ferrous sulfate crystals in the process of dissolving in water were studied,and the models of chemical reaction analysis at the macro level and material structure analysis at the micro level were established.Finally,the model was applied to regulate the properties and improve the structure of plant iron supplements,deeply realizing the value of material structure research,and developing scientific spirit and innovation ability.

关 键 词：物质结构与性质 微项目 七水合硫酸亚铁 亚铁离子还原性 

分 类 号：G633.8[文化科学—教育学]