*It confirms many students’ expectations about classroom learning, particularly for those with an analytical learning style.
*It allows for teachers to deal with language points as they come up rather than having to anticipate them and prepare for them in advance.
*Rules learner discover for themselves are more likely to fit their existing mental structures, making them more meaningful, memorable and serviceable
*Students are more actively involved in the learning process and are therefore likely to be more attentive and motivated.