It is important to remember that each adult learner has one style of learning:
Written: the learner gains information by reading
Visual: the learner gains information by seeing the procedure or the concept being executed
audio: the learning gains information by listening to the content being delivered
Tactile: the learning is delivered using a hands on approach.
Because of this, it is important ot be sure to utilize a variety of educational techniques in order to get through to each type of learner in the classroom setting.
It is also important to take notes at the end of the class to do self-reflection on those areas that could have been delivered better, and those areas that may need to be reinforced or readdressed.