What role do parents play in education?

A lot of debate lately, at least where our teachers currently teach, has centered around the role of parents in education.  It is our belief that parents play a central role in educating their children.  We also believe they share the responsibility with teachers and the school.  The other side of the argument would state that education is the responsibility of the school and the teacher; the parents are irrelevant in the equation of education. What are your thoughts on this?