Google homeschooling and the name of your city or state.
Go to the HSLDA website and get a summary of your state's requirements.
You can design your own curriculum or use a packaged school-in-a-box type curriculum offered by many many (almost too many) educational vendors serving the homeschool community.
My own philosophy is to keep it simple. There are really (at the elementary level) only two subjects: Math and Language Arts. To get your kids to read Social Studies and Science, leave the books laying around the house and then tell the kids it's time to do the dishes.... :o)
Great plan.