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不等式是初等数学中比较重要的部分,在学习函数之前,学习一元二次不等式的解法,特别是将一元二次不等式的解与相应的一元二次方程的解联系起来,有助于学生对相关知识的理解和掌握。但是,对于中职学校的学生来说,解不等式有些困难。按照中高职教学要求,以能力为本位,够用为目的,并培养学生的基本运算能力、基本计算使用能力和简单实际应用能力,我对解不等式的方法与初中课程中解方程的根的方法进行比较、归纳和总结,让学生在较短的时间内熟练掌握解不等式的方法。
Inequality is a more important part of elementary mathematics. Before learning a function, we learn the solution of a quadratic inequality, especially associating the solution of a quadratic inequality with the solution of the corresponding quadratic equation, Understanding and mastery of knowledge. However, for students in secondary schools, solving inequalities is somewhat difficult. According to the requirements of middle and high vocational education, with ability as the standard, enough for the purpose, and cultivate students’ basic computing ability, basic computing ability and simple practical ability, my method of solving inequality and junior high school curriculum root solution equation Methods to compare, summarize and summarize, so that students in a relatively short period of time master the method of solving inequalities.