It's almost summer vacation I am a college student, and I want to make up math for the children who just went to high school. Not one-on-one, but a pair of multi-purpose blackboards. How many days can it be finished? Are you kidding? When I was a sophomore, my math class was no less than 1.5h every day, six days a week, and I finished two books in one semester. If you want speed or tuition, you'd better not run this class. How can high school students be so delayed? Our senior one math teacher is a master of Beijing Normal University. Because it was considered pitiful, it was jointly sued by many parents to the head of the grade and was finally replaced. People still concentrate on teaching, not seeking speed or money. If you think you are better than others, just ignore my answer. The most casual advice is conducive to action. Don't be too arrogant. Teaching is not easy.