This is a free online curriculum, that covers more subjects than most curriculums you can purchase.  It covers all the ages K-12.  It is an excellent resource for those with limited budgets, those just beginning homeschooling and those who love the Charlotte Mason approach to education.

A word of caution:  Do not let the amount of material to be covered each year overwhelm you.  You can adapt the curriculum to best suit the needs of your individual family.