Sometimes my wife would accompany me on a business trip to another city along with my 2 youngest children. They would home school then it was off to a museum, art gallery or some historic site. We always had our 4 children tested at the end of the school year. They took the same tests as the public school students. They always did very well. In fact all 4 were able to land college scholarships. The most any of them owe for their college degree is $10K. Not bad.