探究式教学是在教师的指导下,由学生自主发挥、探索,通过发现问题、调查研究、动手操作、表达与交流等活动,让学生在这种数学教学活动中,既解决最近发展区问题,又能理解和掌握数学知识与技能,数学思想和方法.本文是笔者在高三复习中对一个不等式问题进行探究式教学的一次尝试, Inquiry-based teaching is under the guidance of teachers, and students can play and explore on their own. Through discovering problems, investigating and researching, hands-on operations, expressions, and exchanges, students can solve problems in recent development areas in such mathematics teaching activities. Can understand and master mathematics knowledge and skills, mathematics ideas and methods. This article is an attempt by the author to conduct inquiry teaching on an inequality problem in the third grade review.