Curriculum resources can be expensive—but not this one. An online textbook offers informational text for a complete high school Biology course. Topics include energy flow, body system, genetics, and evolution.

An eBook edition of 1984 is now available for classroom use. George Orwell's famous dystopian novel is downloadable for free for individual computers, tablets, or phones.

Statistically speaking, the content covers several grades. Featuring all of the statistics typically covered in a college-level Statistics course, the expansive content spans from sixth grade on up to high school. Material...