“导学案”这一概念是在近几年的教育改革和实践中应运而生的,优秀的导学案能够切实提高教学效率,对于初中阶段的学生来说是行之有效的教学方法。概念课在初中数学课程的学习中占据着非常重要部分,是学生学习数学的基础,因此,在教育改革日益深入的今天,优秀的导学案设计就成为教师教学的必备法宝。在设计数学概念的导学案时,教师要牢牢地把握住数学概念的核心部分,运用合适的教学方法 The concept of “Guidance Case” came into being in the educational reform and practice in recent years. The excellent Guiding Case can effectively improve the teaching efficiency, and is an effective teaching method for junior high school students method. The concept lesson occupies a very important part in the junior middle school mathematics curriculum and is the basis for students to learn mathematics. Therefore, with the deepening of education reform, the excellent instructional case design becomes the necessary magic weapon for teachers’ teaching. In the design of mathematical concepts of the case, teachers should firmly grasp the core part of the mathematical concept, the use of appropriate teaching methods