The Horizons Preschool for Three's Teacher's Guide provides step-by-step lesson plans to guide you through teaching your child. Horizons Teacher's Guides provide in-depth instructions for the AOP curriculum, as well as lesson extension ideas, supplies lists for all lessons, directions for worksheets, suggested activities for developing gross motor skills and engaging all of your student's senses, and much more.

Because students at this age quickly become computer literate, several lessons offer suggestions for online learning resources, such as games and story books, as well as internet browser search words to locate appropriate materials.