I don't think that that's the way it's supposed to go, although I think that that is justice in this case.  The content of science classes should be left up to science teachers, not politicians, courts, and voters.

Kansas is a bummer for now, but I expect the voters there to express their disappointment there, as they have in the past.  See Kansas School Board Redefines Science.  Ultimately, however, the courts will need to address the issue on constitutional grounds.  The court decision in Pennsylvania is still pending, despite the fact that the school board there no longer supports promoting a theological opinion in science classes.

"content of science classes should be left up to science teachers,"

I am afraid that that is wishful thinking.  The content of all classes, in just about every school out there, private or public, is under the control of the school board.   There are some good reasons for this.  The mechanism by which these school boards become populated are somewhat varied, and you don't have to like them, but that is the way it is, with all of the residual consequences of those mechanisms.

If it is wishful thinking, then my wish has come true with the Dover school board.  Their position is that the content of science classes should be left up to science teachers.  They are considering an elective class on the subject of Intelligent Design, and I don't really have a problem with that as long as it does not proselytize in favor of a religious point of view.  That is best left to privately-supported religious schools, not tax-supported public schools.

Quite so, Doctor.  What we are discussing here is whether the course content ought to be changed to oppose the sensibilities of the community of professionals that teach that subject.  If biologists really believed that ID made scientific sense, they ought to be allowed to teach it.  If they really believe that it does not, then they ought not to be forced to teach it.  You are right that no individual teacher ought to be free to violate school curriculum or government standards.  But those standards should be sensible and legal.  Hence, the court cases.