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【教学目标】知识与技能:1.了解硅在自然界中的含量、存在、用途。2.掌握硅的两种重要化合物——二氧化硅及硅酸的主要性质。过程与方法:1.初步养成自主查阅资料的能力。2.养成联系、对比、归纳总结的学习方法。情感、态度与价值观:了解二氧化硅和硅酸在日常生活、生产中的应用,感受化学的实用性,增强学习化学的兴趣。【教学重点】二氧化硅的用途、性质,硅酸的性质。
【Teaching objectives】 Knowledge and skills: 1. To understand the content of silicon in nature, existence, use. 2. master the two important silicon compounds - the main properties of silica and silicic acid. Process and methods: 1. The initial ability to develop independent access to information. 2. To develop contact, contrast, summarize the learning methods. Emotions, attitudes and values: Understand the application of silica and silicic acid in daily life and production, feel the practicality of chemistry, and enhance the interest of learning chemistry. 【Teaching】 silica use, nature, the nature of silicate.