The TEFL Preparatory Course
It prepared me for what to expect during the CELTA course, and taught me basic (yet essential) terminology, methodology. The TEFL preparatory course also showed me by examples how it works in practice, and when I came to learn about it during CELTA I didn’t have to fight it, everything just made sense.
To put it in a simple way, the prep course just roughed me up to what is to come. I could even play with it through the many scenarios each module concluded with.
Very concise, thought through from beginning to end.