传统的数学教学往往是先讲后做,教师先讲授知识和解题方法,再让学生去探究,学生只是重复一下教师的思路和过程。这样的教学不利于学生自主思考习惯的养成和技能的锻炼。学生通过自主思考和认真做题,能提高学习能力,形成系统化、条理化的知识框架。因此教学中教师要关注以下几个方面来构建动态的数学课堂,下面笔者以“三角函数”教学为例 Traditional mathematics teaching is often done after the first talk, teachers first taught knowledge and problem-solving methods, let the students to explore, students just repeat the teacher’s thinking and process. This teaching is not conducive to students to think independently habits and skills training. Students through independent thinking and serious questions, can improve their ability to learn, the formation of a systematic, structured knowledge framework. Therefore, teaching teachers should pay attention to the following aspects to build a dynamic math class, the following author to “trigonometric function ” teaching as an example