Alessi and Trollip organize various forms of "computer-based instruction" into five categories: tutorials, drills, simulations, games, and tests. They place tutorials first in their taxonomy, and have no explicit place for general software tools, such as spreadsheets, mail readers, or drawing programs. Thus their categories correspond to their general instructional model and can be used as a lens with which to see how various applications support instructors in carrying out aspects of the model.

This is an explaination of what the organization that provides the page does.

Special Equestrian Riding Therapy, Inc. (SERT) is a community-oriented, non-profit organization. Our goal is to provide physically, mentally and emotionally challenged individuals an opportunity for emotional and physical growth through horsemanship. Volunteers are the mainstay of our program, along with our carefully chosen and highly trained horses and ponies.