Khan academy is a great resource. Its easy to read. Its free to access. But how do you hold your students accountable for completing it? Are the little quizzes and practice problems enough? What if you just want to use one section or only have your students focus on the material they will actually need to use? I found my students just weren't getting everything they could and the ones that were doing the best were passing the quiz answers along to their friends. So, I made this study guide that they could fill in and have with them even after the computers are gone.
Disclaimer: My study guide only focuses on the written articles in khan academy due to computer resource limitations with my students not being able to hear the videos.