Why are there always acronyms I don't know in blog posts? What is an MCQ?
There are acronyms because if you teach, you must assess learning to measure your own effectiveness. Especially with adult learners.
I do think condescension is the worst offense. PPT decks help an audience stay focused and hopefully listening on one channel to the speaker who hopefully is not reading the deck. I think the most revolutionary thing about learning is that the TED talk has defined bite-size learning in the 20 Teens. LMS's are not the answer, or lcms, or moocs or diploma mills.
Learning is a process of growth. Education is a process of communication. ~ Stephen Downes said many years ago.