Now parents attach great importance to their children's education and make up more and more lessons. In order to meet people's needs, many people joined the remedial classes. For those who have never done it or have no experience, I suggest investing in smaller projects first and developing them slowly. Not long ago, a friend of mine said that he had participated in an education and training program. The full name of Shanghai is "Shanghai Bangbang Science and Technology Center". They adopt the interactive teaching method of "teaching activities" and "constructivism", so that students can love science, learn to observe, express and think, and cultivate their imagination and creativity in the process of designing and building mechanical, energy and robot models.

I understand that their cost control is very good, and if they do 80 thousand, they will reach 30% profit, so it seems that the risk is not great. I suggest you have a check-up or consult.