http://www.lucideducation.com Lucid Education offers free resources as well as online courses for PreAlgebra, Algebra I, Geometry, Algebra II, Precalculus, Calculus, Physical Science, and Physics.  You can use the Video Index to find video lessons to supplement or help explain issues

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Math With Larry features FREE online math lessons starting from basic arithmetic and taking students through to basic algebra and geometry.  He offers PDF files of practice sheets and video lessons for those parents who need a hands-off approach.  In addition, you can view books he ha