The revised curriculum of Changfu Elementary School - Plant Observation, has been implemented for more than ten years. This is a campus plant observation once every semester and every month. During a certain plant observation last school year, students felt that the leaves of the school tree mahogany, In spring, the trees turn red and a large number of leaves fall. This color gives Changfu’s campus the illusion of autumn. Therefore, this semester, I discussed with the student’s class instructor, Teacher Yi Ping, whether we could share cross-domain courses with the arts and literature field this semester. In Gongbei, I found that the Chinese language course "Impressions of Traveling to Mount Lu" teaches students how to read a poem. Teacher Yiping thought that she could also try asking students to write children's poems, so she started planning a cross-field project for this semester. Aesthetic courses. After discussing with teacher Yi Ping, they used "the feeling of color" to enhance students' creative motivation. The original idea was to allow students, through a visit to the campus, to discover that the colors of the four seasons belonging to Changfu Campus are different from the inherent impressions of the four seasons in the textbooks. Use these knowledge of colors to write a children's poem. The color combinations learned will be used in space layout. It is hoped that through this course, students will become more familiar with color mixing and gain knowledge of beauty in life.