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1设计说明1.1学情分析学生经过新授课的学习,对不等式(组)有关知识有一定的了解,但对不等式与一次方程、一次函数等内容的内在联系及综合运用还缺乏系统的理解与训练,尚难以形成知识网络。《义务教育数学课程标准》(2011年版)对“不等式与不等式组”的目标要求为:(1)结合具体问题,了解不等式的意义,探索不等式的基本性质;(2)能解数字系数的一元一次不等式并能在数轴上表示出解集,会用数轴确定由两个一元一次不等式组成的不等式组的解集;(3)能根据具体问题
1 Design Description 1.1 Analysis of Academic Situation After the new lectures, students have some knowledge of inequalities (groups), but there is a lack of systematic understanding and training on the inherent relations and comprehensive utilization of inequality, first-order functions and other equations , It is still difficult to form a knowledge network. The objectives of the “Standard of Compulsory Education Curriculum” (2011 Edition) for “inequality and inequality set” are as follows: (1) to understand the significance of inequality and explore the basic properties of inequality by combining with specific problems; (2) Of the unary inequality and can be expressed on the axis of the solution set will use the number of axes to determine the set of two unary inequalities consisting of the set of inequalities; (3) can be based on specific issues