Traditional textbooks are expensive, rigid, and heavy. No updating. No customizing. Enter the FlexBook, a digital-age textbook. Free, customizable, and standards aligned. The future is now. Welcome to CK-12.
Free textbooks in a variety of topics on CK-12. This is promoted as "learning made simple." Do students know how to find and download alternate sources of information? Can they find and search for the topics they are currently studying? This is a valuable way to compare and research topics.