Curriculum Publishers
Curriculum is a very interesting thing. There are companies that market and publish materials solely for public schools, some that do the same for private schools, some that do the same for homeschoolers. There are also publishers that try to market and publish for more than one of the groups. Then, there are also companies who get noticed by homeschoolers, but do not avail themselves of that market. Harcourt/Houghton Mifflin publishes the Saxon phonics and Saxon math curriculums. These are used by public, private, and home schools. Teacher's guides can be purchased for these curriculums by homeschoolers. Their public school materials on the other hand (which I use and buy used via Amazon) are generally more expensive than other homeschool alternatives. As a certified teacher, you can order curriculum from Harcourt and get the school price for the materials which is discounted from the regular price. The same goes for Macmillan/McGraw-Hi...