smart board or smart board.Second, the interactive whiteboard is divided into electromagnetic induction type, pressure sensitive type and infrared type electronic whiteboard. The writing is convenient and timely, but the feeling of writing cannot be compared with the blackboard. Even if there is a pen, writing on the whiteboard is not written on the blackboard. The words are beautiful and the strokes are sometimes inconsistent. To write such a colorful and vivid strokes, it is necessary to use a variety of correct pen-and-pencil methods, but it is not acceptable for interactive whiteboards to draw rigid and rigid lines. The ancients said: "The word is the crown of the people." Good strokes should be vigorous and powerful, coherent and courageous. For this reason, the chalk word is an important ??facade?? for the teacher's career. Any teacher who writes neatly on the blackboard and has a beautiful book will often leave a good impression on the students. Moreover, in the classroom teaching, the teacher's chalk board is written, which will directly affect the students' writing interest, aesthetic cultivation and teaching quality.