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一元一次不等式是最基本的不等关系式,是进一步学习不等式和其它一些数学知识(如一元二次方程根的判别式,函数定义域的确定等)的基础:为使学生能较深刻地理解这部分内容。下面就教学一元一次不等式的几个问题,谈谈自己的看法。 一、不等式的解和解的集合 要想正确地、熟练地求出一元一次不等式的解,首先必须使学生正确地理解不等式的解和解的集合的意义。这是教学中的一个难点。教师可通过实例逐步引导学生掌握这两个概念以及它们之间的联系
Unary inequality is the most basic inequality, and is the basis for further learning inequalities and other mathematical knowledge (such as the discriminant of the root of a quadratic equation, the determination of the function domain, etc.): In order to enable students to understand more deeply This part of the content. Here are a few questions about teaching a dollar inequality, to talk about their own views. First, the set of solution to the inequality In order to correctly and skillfully find the solution to the unary inequality, we must first enable the students to correctly understand the meaning of the set of solutions to the inequality. This is a difficult teaching. Through examples, teachers can gradually guide students to master these two concepts as well as the connection between them