BETA BRAINGENIE is a skills practice site created by OER provider, CK12. Through a series of individual timed practices or multiplayer competitions, students can practice and master Grades 1 through 8 Math, Algebra I & II, Precalculus, and Grades 6 through 8 Science, Biology, Chemistry, and Physics-- earning badges and vying for leaderboard positions along the way. Common Core mavens will appreciate the standards alignment for grades 1 through 7 math. To start practicing simply navigate to the topics page and choose a section. If you want to track your progress, though, you'll need to register.