Some downloadable pdfs:
Understanding Soil Health and Watershed Function (takes you to a short form with download link at end; reviewers edition, September 29, 2017). This is a 146-page manual for teachers, students, citizens.
Field Guide to the Most Powerful Planetary Force is a description of sunlight energy flow, its implications for decision making, and a guide to making and recording some repeatable observations and measurements. 81 pages.
Measuring Soil Carbon Change: a practical, local method is the previous 60-page version of the above guide, also useful.
Four ways of recognizing the circle of life is a small 12-page hand-drawn booklet.
Soil Carbon Coalition is a 501(c)3 nonprofit organization