论文部分内容阅读
运用不等式解决实际问题,是初一教材(人教版)第九章学习的重点,也是学生学习的难点.因为学生从小学到初一上学期所学知识基本上是同等式打交道,很少涉及到不等式的知识,因而找相等关系已成为一种习惯性,而对实际问题中存在的不等关系,以及用不等式来表示这样的关系就感觉难,因此教学这部分知识时要充分发挥书上例题的作用,充分发挥学生的能动性,培养学生分析问题、解决问题的能力.比如:新教
The use of inequalities to solve practical problems is the focus of the 9th chapter of the first grade teaching materials (PEP). It is also a difficult point for students to learn. Because students learn from the elementary school through the first semester is basically the same type of knowledge to deal with, rarely involved To the inequality knowledge, it has become a habit to find equality. However, it is difficult to express such relations by inequalities and inequality in practical problems. Therefore, it is necessary to give full play to the teaching of this part of the knowledge. The role of examples, give full play to the students’ initiative, develop students’ ability to analyze problems and solve problems. For example: Protestantism