Glass transition is an important part of the polymer teaching. The change of free volume and the movement of molecular segments during the transformation process are difficult to understand for undergraduate students. Using a molecular simulation method on a computer to obtain a three-dimensional visualization

students can more intuitively observe changes in free volume and molecular chains. Refining the latest scientific research results of molecular simulation technology in the research of glass transition in recent years

We obtain the course materials with both theoretical basis and adaption of undergraduate teaching. The simulation experiments can obtain the data by ultra-fast temperature rise and fall that can not be achieved by the instrument test. And they were compared with the experimental data obtained by the instrument test

which verified a theory view. That expanded the scope of the experiment and achieved a good teaching effect.