The person who believes he is bad at math, and always will be, won’t try hard to improve, because that would be pointless, and if he is compelled to study math—as we all are in school—he will take any setback as further proof that his limits have been revealed and he should stop wasting his time as soon as possible. Whatever potential he had for improvement will never be realized. Thus, the belief “I am bad at math” becomes self-fulfilling.
