<civodul>i wonder about the implications of separating explanations
<zimoun>I agree. To me, explanations are distilled (maybe the correct word is disseminated ;-)) in the 3 other types.
<zimoun>Well, when speaking about class, we have lesson with blackboard (reference), exercises (tutorial), and labs (how to). The explanations are: repeat again and again and again. ;-) Well, from my experience about teaching.