in 1957, after graduating from the Department of mechanical engineering of Chongqing University, Zhong believed in teaching. Since then, scientific research, mechanical teaching cards and teaching reports have been painted by Zhong Xin Xin personally. Zhong Xianxin said that in 50s, there was no teaching material for machinery. In order to accurately draw large mechanical drawings, I had a special trip to Changchun automobile factory and Shenyang heavy machine factory to visit and study and collect teaching materials. After coming back, we made a teaching practice report to the students.
in addition to the teaching practice report, every cold summer vacation to draw a good teaching card is a "compulsory course" in the first letter of the bell. "2 or 30 teaching cards to be used in a semester should be painted in advance in the winter and summer vacation." Zhong Xianxin said that although the machinery belongs to the science and Engineering Department, but the teacher can not empty the teaching, "that time life is more difficult, unlike now computers, cameras, images of things can not be spoken, to let students see the object, the most direct way is hand painting."
"I think this is not the best way of presenting the mechanical map, although it is possible to use a computer for PPT in class." Zhong Xianxin said that drawing is not only the drawing of images, but also a process of thinking. "Computer is a bit opportunistic." Zhong Xin is still painting now. In his opinion, if a teacher can not even draw a mechanical drawing, how can he teach the students?