This should be taught in every school..

[Oldandeasilyconfused]

Trouble is, the new-agers got it backwards. The nerds didn't become clever because they had high self-esteem; they had high self-esteem because they were clever.

Another problem is that the observations are anecdotal and not based on evidence.Apart from the fact that few teachers are qualified to make such an assessment.

The teacher's perception is no more than the old nature/nurture dichotomy,which remains far from resolved.

Even if the observations were correct,the reasoning is flawed, conflating correlation with causation. The same erroneous reasoning is often used trying to a make a causal connection between intellect and atheism.