Exercise lesson teaching on the ordinary differential equation: an example of the elementary solution of the first order differential equation

In order to improve the students' enthusiasm in learning ordinary differential equation and stimulate students' interest in learning, this paper presents the design of exercise lesson on "the elementary solution of the first order differential equation" by recalling the elementary solution of the first order differential equation and combining with examples to strengthen and expand the exercises. The exercise lesson design can enhance the degree of mastery of the elementary solution and help students understand the connection between these exercises.