Online curriculum for Language Arts, Math, Science and History. Includes video lessons, practice problems, and differentiated instruction. Monthly tuition provides up to 5 courses per student, and students work at their own pace. There are discounts for multiple students. Could be a pretty good deal, if you used it for several subjects.
A discovery-based elementary math program.
A digital library featuring literacy, assessment, and tracking tools.
This site has a collection of over 500 science lesson plans for grades 5 through 12.
History and Social Studies curriculum available for free from a non-profit, bipartisan organizati
Online, interactive program for learning music reading and theory.
This non-profit organization offers over 100 free self-paced, online, college level courses.