Using a grid, determine the number of plants in a certain area. Then, extrapolate to the whole area and estimate the number of birds and butterflies attracted. Available in bookstores. Henry Kock and Steven Aboud. 4110 Check with your local school board.
Many larger ones have a schoolground naturalization manual.
Edward Cheskey Waterloo Board of Education. Try one of these ideas for teaching naturally in the schoolground, local park or natural area. Develop a natural habitat on the schoolground or in a nearby park. This project can be as small or large as your budget and enthusiasm allows. Use native plants as these require less maintenance and will encourage birds and butterflies and other interesting creatures using these activities.