Why do we need to do this?

You might have this question, or sceptical thoughts of "Gaining learners' attention, really?"

My simple answer: "YES!"

and here's my 1-min intro video to spice things up a little here..

(1 way of gaining attention lah.. ^^)

Furthermore, Gagne's 9 instructional events states that the very first event is to gain the attention of our audience.  Gagne (1916 - 2002) is an American educational psychologist best known for his "conditions of learning".