I recall that most people can manage 4 hours of intense concentration per day. If you are doing 5 hours of homework per night (after a full day of school), memorization is more effective at completing the workload - since you don't have time/energy to spend on rationalizing.
But it does seem likely that she's repeating this phrase from a teacher. Worrying. A positive interpretation is that the language teacher intends this to mean exactly what you say - languages are best learned through use, and can't be learned rationalizing the rulesets of grammar.
But it does seem likely that she's repeating this phrase from a teacher. Worrying. A positive interpretation is that the language teacher intends this to mean exactly what you say - languages are best learned through use, and can't be learned rationalizing the rulesets of grammar.