Home education is 100% legal , you do not have to be a teacher or have qualifications to teach your own child.
I have put a collection of links together that I found useful while putting together an education for my younger son.

http://math-and-reading-help-for-kids.org/free_childrens_learning_sites.html
http://www.learningpage.com/
http://members.aol.com/donnandlee/SiteIndex.html
http://members.aol.com/MrDonnLessons/LessonPlans.html#Top
http://www.bbc.co.uk/learning/
http://www.amblesideprimary.com/ambleweb/numeracy.htm
http://www.kids-artwork.com/lesson29.html
http://www.amblesideprimary.com/ambleweb/lookcover/lookcover.html
http://www.channel4.com/learning/microsites/W/waywithwords/main.html
http://www.funbrain.com/
http://www.cadburylearningzone.co.uk/maths/index_content.htm
http://www.aplusmath.com/Worksheets/index.html
http://www.funbrain.com/funbrain/cashreg/index.html