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一、课标、教材分析“利用化学方程式的简单计算”是人教版九年级化学上册第五章第三节的内容。在第四章,学生已经学习了依据化学式的计算。在本章中又学习了质量守恒定律和化学方程式的书写,依据化学式及化学方程式的计算是化学中定量研究的真正体现和具体应用。在本节课教学中,把三个知识点融合起来,引导学生以化学计算为主线构建新的知识网络,初步形成化学研究中定量研究的思想。二、学情分析本节课在学习了化学式的计算、质量守恒定律、化学方程式
First, the course standard, textbook analysis “Simple calculation using the chemical equation ” is the content of the third chapter fifth chapter fifth chapter of the PEP. In Chapter 4, students have studied chemical formulas. In this chapter, we also learn the law of conservation of mass and the writing of chemical equations. Calculations based on chemical formulas and chemical equations are the true embodiment and specific application of quantitative studies in chemistry. In this lesson teaching, the three points of knowledge together to guide students to the main line of chemical calculation to build a new knowledge network, the initial formation of chemistry research quantitative research ideas. Second, academic analysis In this lesson, learning chemistry formula, the law of conservation of mass, chemical equations