Agree with @MrFadedGlory and @CTCZ. After trying a few options, we embraced the Ron Paul Curriculum as our core homeschool foundation. It offers an outstanding self directed, autonomous, libertarian oriented, essay-centric, real world applicable skill-set platform. We supplemented with a subscriptions to Tom Woods Liberty Classroom, Wondrium, Rosetta Stone, Babble and Competitive BJJ.
Like everything else in this parental life, tinkering and tailoring a winning formula with and for your kiddos is the best way to ensure they receive the education they need and deserve. Plus, it's one helluva rewarding adventure!
Have fun and best of luck!