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案例背景:一元一次方程复习课是苏科版数学教材七年级上册第四单元的章节复习课,教学目标一是经历“问题情境—建立模型—求解—解释与应用”的基本过程,二是获得一些研究问题的方法和经验,发展思维能力,加深理解相关的数学知识,三是通过获得成功的体验和克服困难的经历,增强应用数学的自信心。教学重点和难点是运用一元一次方程解决实际问题。一元一次方程是学生
Case background: One-item one-item review class is the chapter review course of the fourth grade of the seventh grade of the textbook of the science textbook of Su Ke edition. The teaching goal is to go through the basic process of “problem situation-building model-solving-interpretation and application”. It is to obtain methods and experiences for some research problems, to develop thinking skills, to deepen understanding of related mathematical knowledge, and to increase self-confidence in applied mathematics by obtaining successful experiences and overcoming difficult experiences. The focus and difficulty of teaching is to use one-dimensional equation to solve practical problems. One dollar one equation is a student