I find this subject fascinating.
In my classes, water cooling contacts, chats and presentations of a subject (and they are very technical matters) , I try to involve emotional representations (Histories of the old days, incidents relating to lack of skills - anecdotes after all) .
Adding situational context to the content helps to connect item of knowledge and reinforces memories.
John Medina http://www.brainrules.net/pdf/JohnMedina_PsychTimes_May08.pdf, explained it very clear . Thanks Diego Leal, for reminding me of this .