导学案教学模式的主旨是提升教学吸引力,集中学生的兴趣和智慧,开发学生的思维空间,发挥学生的主体性,培养学生的创新能力。在高中数学课堂教学中利用导学案模式可以培养学生敏捷、睿智的数学思维,保持学生的学习动力。本文将举例浅谈如何利用导学案提高高中数学课堂的有效性,并提出个人见解,希望能为高中数学教学工作提供借鉴方案。 The guiding principle of teaching case teaching mode is to enhance the attractiveness of teaching, to concentrate the students ’interest and wisdom, to develop the students’ thinking space, to give full play to the students ’subjectivity and to cultivate the students’ innovative ability. In the high school mathematics classroom teaching, the use of guide mode can cultivate students’ agile and wise mathematical thinking and keep students motivation. This article will give an example to talk about how to improve the validity of maths class in senior high school by using the guide case, and put forward personal opinions in the hope of providing references for math teaching in high school.