Does the school teach me WHAT to think, or HOW to think?

In my opinion, at school, most of teachers are teaching us what to think, but not all. Most of teachers explain us things that are already explained, we don't have to doubt about explained thinks, we only have to understand and learn without quiestons but the rest of teachers explain us how to think in a different way, they explain us that we always have to doubt about all things that we learn, we have to doubt, we have to understood that things. So, the school doesn't teach me, teachers teach me what to think and how to think.