Re: the educational benefits of children in central Ji'nan are coming! The second classroom will be opened at the provincial science and Technology Museum.
Zheng held a battle for example, such as the knowledge of mechanical aspects, what is the effect of various mechanical devices on life, and there are only the simplest experimental instruments in the school, but there are various gear combinations in the provincial science and Technology Museum, not only round, but also straight and square, with each other producing transmission and changing the direction of force. To a large extent, it opens up the eye of the students.
