What does this mean in simple terms and in light of Federal vs. State control of education?

According to your textbook, “It is a widely held perception that local school boards control public education, but local boards have only those powers conferred by the state.” What does this mean in simple terms and in light of Federal vs. State control of education? Why is this important in our understanding of school law? In your response, indicate at least two decisions controlled by the states and two controlled by the federal government.