.whiteboard marker holder.In the traditional classroom, due to the limitations of teaching environment such as teaching aids, methods and means, some abstract thinking in mathematics teaching is difficult to communicate vividly and effectively to students. Classroom often lacks collaborative interaction, and the subjective status of students cannot be fully reflected. Collective wisdom cannot be fully shared. . These are not conducive to improving the teaching effect, but also limit the cultivation of students' practical ability, cooperation ability and innovative spirit. After the interactive whiteboard, we use the interactive whiteboard to assist the teaching in a timely and appropriate way, create a rich scene of teaching with realistic and vivid pictures, make the abstract mathematical content visualized and clear, and make the mathematics knowledge The static infusion becomes a dynamic communication of pictures and sounds, which can greatly stimulate students' active learning enthusiasm, make students' active thinking and interest participate in teaching activities, cultivate their positive thinking, develop thinking and formation ability; The teacher is mainly based on teaching and becomes the student-oriented school, thus improving the teaching quality, optimizing the teaching process and enhancing the teaching effect. Using interactive whiteboard teaching can indeed achieve some effects that traditional teaching can't achieve.