1. Open the tablet, slide left and right to find the synchronous full solution interface, click on the subject you want to study, and the tablet will jump to the supporting teaching materials according to the grade filled in by the user when registering.

2. Users can also choose their own teaching materials. Click the textbook title in the textbook catalog to jump to the textbook selection interface.

3. Click on "All Textbooks", then choose the grade, find the textbooks for next semester and start learning.