You've considered the past and the present. This long-term class project is an invaluable way for students to become familiar with native plant and animal species and to gain firsthand understanding of the importance of conservation. Plant trees or create a pond. Conserve a habitat for birds. Find out how to incorporate the four essentials for wildlife into a habitat.
Younger students can simulate a habitat for wildlife in the classroom.
Then discuss with them ways this habitat can be maintained or improved. Future Perfect Draw or paint a picture of how your school grounds could look if you restored or added natural habitats. Adapted from the 1996 Geography Awareness Week teacher's handbook.