whiteboard 70 x 50.A total of the following three types of topics were designed in this exercise. 1. ??Guess a guess??: Let the students scrape off the red part with the ??scratch brush?? in the ??painting brush?? to guess the answer and read the word sound. This small topic greatly mobilizes the enthusiasm of the students for literacy. Everyone is eager to get up and scratch their own literacy skills. Second, "discriminate and distinguish", this is a small exercise that students use the whiteboard pen to connect the group words to distinguish the near-words and select the words to fill in the corresponding sentences. The students recognize the new words in the process of identification and selection. Understand the meaning of the word. The third is to connect words into sentences. In the operation of dragging the word module, by the way, the partial and second characters appearing in this lesson are memorized. If these three small questions are copied on the blackboard in a traditional way, or demonstrated on a projection, the trouble of the process and the waste of time are conceivable. Because of the electronic whiteboard, the training process is intuitive and flexible, and a comprehensive training problem is easily accomplished with remarkable results.