iqboard touch.First, it is easy to control the material display process. The teacher can control the playing of the presentation materials without having to go to the main console. This allows the teacher's body language to be fully utilized in the classroom, and avoids the teacher going to and from the blackboard in the classroom. Distracting students' attention from the console. The teacher can be proficient in the whiteboard, which allows the teacher to leave the computer console and stand in front of the whiteboard for the student. This change allows the teacher to return from the group to the student group. We know that whenever a teacher demonstrates courseware on a computer console, the teacher's walking on the platform and the delay of time can easily cause redundant information transmission to some students who are not easy to concentrate and undermine his concern and understanding of the knowledge content. This should especially be avoided in primary school classroom teaching. As students pay more attention to whiteboards (formerly blackboards, but their information capacity is small, the form is single, and there is pollution), the learning process of collective participation is strengthened, and teachers become members of the entire learning group, no longer Away from the students' software or equipment operators hiding behind the equipment, the students unconsciously reached more emotional communication with teachers and classmates, and their interest in learning increased.