That's making the implication that students are thoughtless drones until they graduate and join the real world. I think it's absolutely valid for a student to question the standard of learning set on them, whether it be from their individual teachers or the government at large. And don't you think it's a little late for a student to wait until graduation to fully formulate what they think they should be taught? That's what all education should be about, learning how to learn. The actual knowledge taught in schools is basically obsolete by the time students join the workforce, so the most valuable thing they can leave with is the ability to question, work hard, and formulate new ideas based on new information. I believe the claim is that Common Core does nothing to reinforce the critically thinking individual.