Curated OER
Establishing a Lawn
The techniques for preparing soil before laying, or seeding, a lawn is covered in this set of slides. Ideal pH, fertilizer, and drainage is described. Details of the best seed type for different conditions are also...
Purple Math
Purplemath: How Do I Compute My Grade?
Demonstrates how to figure out what you need on the Final to pass your course, given a typical grading scheme.