Our school is close to the ocean, and the school-based curriculum has been centered on marine education for many years. The common scenery and creatures on the seaside have been integrated into the daily lives of students. Therefore, marine education in the lower grades focuses on the topic of fish and coral reefs, through the discussion and characteristics of biological shapes. Lenovo started to create, further introducing the environmental issues of the survival of coral reefs, arousing students' empathy and resonance, and then loving the sea and cherishing it, and thinking about how to do their part for the ocean.