《矿物与我们的生活》教学实录与反思
2021-01-10汪志平单道华
汪志平 单道华
摘要《矿物与我们的生活》是四年级上册第五单元“岩石与矿物”单元的总结课,在前两课的基础上,学生已初步建立起“矿物”的概念,并掌握了观察和描述一些典型矿物基本特性的方法。本课能让学生认识到矿物是生产生活中的重要原料,深入了解以石膏为代表的非金属矿物和以铁矿石为代表的金属矿物在生活中的应用,同时引发矿物储量逐渐减少后,如何采取保护措施的思考,学习目标达成率高。课后学生思维被充分激活,学习兴趣高涨。
关键词 矿物 生活 教学实录 反思
中图分类号:G424文献标识码:ADOI:10.16400/j.cnki.kjdk.2021.05.011
Teaching Record and Reflection of Minerals and our Life
WANG Zhiping[1], SHAN Daohua[2]
([1] Nanjing Lishui Experimental Primary School, Nanjing, Jiangsu 211200;
[2] Nanjing Teaching and Research Institute, Nanjing, Jiangsu 210001)
Abstract: "Minerals and our life" is the summary lesson of unit 5 "rocks and minerals" in Volume 1 of grade 4. On the basis of the first two lessons, students have initially established the concept of "minerals" and mastered the methods of observing and describing the basic characteristics of some typical minerals. This course enables students to realize that minerals are important raw materials in production and life, deeply understand the application of non-metallic minerals represented by gypsum and metallic minerals represented by iron ore in life, and at the same time lead to thinking about how to take protective measures after mineral reserves are gradually reduced, so as to achieve high learning goal rate. After class, students’ thinking is fully activated and their interest in learning is high.
Keywords: minerals; life; teaching records; reflection
教学分析
本课是四年级上册第五单元“岩石与矿物”单元的总结课,是在第一课与第二课聚焦于观察与描述常见岩石和矿物的性质基础上,侧重指向矿物在生产生活中的广泛应用。本课旨在:揭示矿产是人类工农业生产的重要资源,矿产资源是国民经济发展的物质基础,帮助学生建立矿物是重要自然资源的认识,重点展示了人们利用矿物制作日用品的事例,让学生更好地体会到矿物是现代工业的“粮食”和“血液”,激发他们保护矿物资源的意识。遵循学生的认知顺序,由浅入深地展開四项内容:第一部分是将几种常见日用品和使用的矿物配对,初步认识矿物是重要的生产原料。第二部分是通过阅读教材上的图片和说明,了解从铁矿石到铁制品的生产过程,为认识金属制品来自金属矿石打开一扇窗户。……
