If you choose a topic, you can't be unfamiliar with knowledge. You can come up with two questions of the same type after you finish the problem. This will be very effective.
I have been teaching math one-on-one for seven years. I feel that one-on-one to keep up with the big class, the biggest difference is that in addition to talking about the topic, we must also find out the students' psychology and habit of doing the topic. According to these personal information, make a consultation plan. In this way, students' grades can be easily improved.