Abstract: Practical teaching is an important way and key link for ideological and political courses in colleges and universities to
enhance teaching pertinence and effectiveness. The "student cadre preaching method" of ideological and political courses promoted by
Dali University is based on the needs of students' all-round development. Through the "student cadre" as a bridge, it indirectly realizes
the "full coverage" of practical teaching for students and makes ideological and political courses fresh and vivid in the big social
classroom. However, this teaching model has the deficiency that it cannot directly cover all students. Therefore, in the exploration of
practical teaching of ideological and political courses, it is necessary to firmly establish the teaching concept of "covering all students" in
practical teaching of ideological and political courses, construct a standardized practical teaching system to ensure the implementation of
"full coverage", and make full use of modern information technology means to promote the realization of "full coverage", improve the
teaching effectiveness of ideological and political courses, and give full play to its educational function of cultivating people with
morality.

Key words: ideological and political courses, practical teaching, cadre preaching, full coverage