"BTW, even if the schools taught patriotism and conservative values I would disagree that that is what we want from the schools. I would like the schools to teach a history that is fair, and could teach comparative religions in a course designed for this, but teaching that homosexuality is a reasonable way of life.."
Nice summary and sensible. In a similar vein, one can teach about homosexual without advocating homosexual activities just as one should be about to teach religion without advocating it?
"I simply resent the government telling us how we should think."
Perhaps you meant to say that schools shouldn't teach children "what to think" but how to think. One who knows HOW to think will discern truth for themselves rather than relying soley on another for truth.
Yes, I once taught a lesson that was false, (in math) eventually the proof was coming up with ridiculous congruencies. The bell rang and one student asked if the conclusions were suspect. (Only one) When they learned the truth, they thought it very wrong for a teacher to "lie" to the students. These were kids who badly needed to learn to think for themselves, but they were only in Geometry in High School, so I guess there was still time. (The proof divided by zero at an early stage, once this is done, you can prove many things that are untrue)