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在数学教学实践中,“复习课最难上”是众多一线数学老师深有体会的,而初三中考前的一轮复习,是对整个初中知识进行归纳、整理,并做横、纵向的拓展,形成结构化知识体系.最后通过迁移训练,培养学生举一反三、触类旁通、运用所学知识解决问题的能力.所以说一轮复习不是简单的重复,它最终目的在于培养和提高学生运用知识、解决问题的能力.锐角三角函数这一部分知识是数学中的基本工具之一.解直角三角形不仅在实际问题中有着广泛的应用,而且更为重要的是,它对数学本身也有着极为
In mathematics teaching practice, “the most difficult on the review class ” is a lot of first-line math teachers deeply understand, and the first three exams before a review, is to summarize the entire junior high school knowledge, and horizontal, Vertical development, the formation of a structured knowledge system.Finally, through the training of migration, training students to learn from the others, by analogy, the ability to use the knowledge to solve the problem.So a round of review is not a simple repetition, and its ultimate goal is to train and improve the use of knowledge , The ability to solve the problem.Acute trigonometric function of this part of the knowledge is one of the basic tools in mathematics.Rectangular triangle not only in practical problems has a wide range of applications, but more importantly, it also has a very mathematical