2. The first instruction is to make a phone call to explain the requirements and cancel the requirement of listening to books before going to bed. When using the small-scale educational wisdom screen, children can also read textbooks, and the questions will be solved one by one. There are textbooks for primary school Chinese, mathematics and English in the small education wisdom screen, where you can find videos of famous teachers for your children to learn, so as to preview and review the textbooks. Small-scale education can help parents better understand their children's learning problems.