巧用端点值解不等式问题

文章论述了学生在解不等式中，经常遇到已知不等式的解集确定参数值的问题，而常常不得要领，作者从解集区间的端点值方面探索了此类问题，并举例说明，对学生解决此类问题有重要的指导作用。

Using End-point Value to Solve Inequalities

Students often meet issues on setting parameters of known solution to inequality in finding the solution of inequality and often failed to get the skill. The author takes examples to illustrate such issues from the endpoint value of solution range, which plays an important role in guiding students to resolve such issues.