"Observing the morphology of polymer spherulite and measuring the radial growth rate of spherulite by polarizing optical microscope" is a classic experiment item in polymer physics experiment. In the conventional teaching process

this item is just a proof experiment

and the content is relatively simple and boring. On the basis of this classic experiment item

we designed a comprehensive and exploratory experiment whose main content includes the dissolving of polymers

the preparation of films and the study of the crystallization process. The main improvements of the new experiment item are as follows: (1) the uniformity and stability of the samples are improved by using the spin-coating method; (2) the accuracy of the results are improved by using the

insitu

heating stage and the charge-coupled device (CCD) imaging system; (3) helping the students to understand the knowledge in polymer physics by experiments

and improving their ability to apply what they have learned; (4) encouraging the students to explore freely by providing experimental conditions and guidance

and thus their abilities in learning

finding and solving problems are improved. The content of this experiment can not only be used in the experimental teaching of

Polymer Physics

but also can be extended to other courses including the comprehensive and design experiment

the graduation thesis

and so on.