where is whiteboard in skype.In the past, multimedia courseware was mainly used for teaching materials demonstration. The pre-designed and highly structured courseware can only be switched in a limited manner during the demonstration process, and cannot be changed and marked. The student participation is very low. The interactive whiteboard platform can call the required materials according to the actual situation of the teaching, switch between writing, marking and computer operation status at any time, and flexibly edit, organize, display and control according to the needs, so that the flexibility of teaching is greatly increased. Students have more opportunities to display, express, practice and cooperate in front of the whiteboard. The enthusiasm for participation has increased, and the ways of participation have become more diverse. It is more conducive to cultivating students' ability to actively explore and actively construct. Conducive to return to a dynamic classroom. The visual effect of the whiteboard is also conducive to attracting students' attention and improving students' interest in learning. These features provide technical convenience for teacher-student interaction and interaction in the classroom, and promote the formation of a student-centered classroom.