High school courses are mainly elliptic hyperbolic space geometry and so on. After studying for a few minutes, the formulas and theorems at that time have long been forgotten. How can you still do it? !

But! !

If you calm down and study hard for an hour, you will find the knowledge points in high school, which is really simple. At this time, your brain nerve has been honed by several generations, and your abstract thinking ability and deduction ability are far from being comparable. Looking back on high school knowledge, you certainly feel naive. Therefore, it is no problem to go out as a tutor and take remedial classes. ...