Students learned to "listen" will it be possible to imperceptible or consciously and systematically into their teacher's teaching method, so as to really learn and master a variety of methods.
Students only learned to "listen" is it possible to subtly or unconsciously, the system put into his study of law within the teacher's teaching, which really learn how to learn and master various methods.
Students only learn to "listen", it is possible to unconsciously or consciously system to the teacher's teaching method for their own learning methods, so as to learn to learn, to master a variety of methods.