smartboard online viewer.The interactive concept of interactive whiteboard design, as well as the interactive and easy-to-operate features of whiteboard technology itself, as a transformative teaching method, is conducive to the reform of classroom teaching methods, which is beneficial to teachers and students, students and Interactive learning between students. For teachers, using the functions of writing, drawing lines, moving, rotating, mathematical tools, containers, etc. of interactive whiteboards, according to the teaching objectives, we can design a whiteboard-based teaching strategy and wonderful interactive situations, so that the whiteboard becomes a collective learning for teachers and students. An interactive platform for dialogue with equal opportunities provides students with more opportunities to participate in collaborative learning. This advantage, that is, the interaction between students and whiteboards, is conducive to cultivating students' ability to actively explore and actively construct. For example, in the teaching of "Knowing Computers", in order to improve students' understanding of computer structure and computer hardware, the author designed an interactive situation of simulated installation, so that students can use the drag and drop function of the whiteboard to drag different hardware to the corresponding position of the chassis. . Students learn, collaborate and communicate in front of the whiteboard, making the original boring and abstract teaching interesting and intuitive. In order to enable students to master the structure and structure of the local area network, I asked the students to draw the basic topology map of the local area network on the whiteboard or group it on the whiteboard after the group study and discussion. It is both interesting and able to test the students. The degree of mastery of knowledge.