smartboard and powerpoint problems.The electronic interactive whiteboard is integrated by the hardware electronic board ( White Board) and the software whiteboard operating system (ACTIV studio). Its core components consist of an electronic sensor whiteboard, sensor pen, computer and projector. The electronic sensor whiteboard is a large sensor screen with a normal blackboard size and working under the support of computer hardware and software. Its function is equivalent to a computer monitor and replaces the traditional blackboard. The electronic sensor pen takes on the dual function of the whiteboard pen and the computer mouse, and its role replaces the traditional chalk. The teacher or student directly uses the sensor pen to operate on the whiteboard (equivalent to the traditional teaching, the teacher and student use chalk to operate on the blackboard): write or call various software, then feedback to the computer through electromagnetic induction and quickly project to the electronic through the projector White board. ACTIV studio is a software platform that exists in computers. It not only supports the exchange of information between people and whiteboards, computers and projectors, but also comes with a powerful library of subject materials and resource creation tools. And it is an intelligent operation platform compatible with various software. Teachers can freely call various materials or application software teaching on the whiteboard. The whiteboard is a combination of traditional blackboards, computers, projectors, etc., making it easy for teachers to use. Second, the working principle