If a college freshman has missed learning something basic in public school, can't he just go online and teach himself using all the wonderful free educational math websites that homeschoolers like me use when they don't have a clue how to teach something?

The recent college graduate that my husband, son and I talked to at a political rally told us that there were things he was not taught in his small town public school. He had to learn these things on his own outside of school.