I applied online. The process took 1 day. I interviewed at Sagio.be (Leuven) in Aug 2014
Interview
Beforehand you need to prepare a few questions a possible student could have, then you are invited by Sagio. There were 2 people there, first we talked about my CV and then I had to teach them the lesson I prepared. I immediately knew if I could start or not so at the end I already got to fill in all the papers.
Interview questions [1]
Question 1
If a student isn't doing his best, how will you handle that?