The main problem with teaching calculus at school is, that only a few pupils really come to understand it. For most pupils, the educational outcome is the oppos

The main problem with teaching calculus at school is, that only a few pupils really come to understand it. For most pupils, the educational outcome is the opposite of a meaningful "weightlifting for the brain". In order to pass their tests, they try to memorise some recipes that they have made up from sample solutions. Instead of learning to think systematically, they are taught to somehow muddle through and feign understanding where they know nothing at all.