Work /
Interview at a Callan School [204]
There is some truth to that. As a trainer of the method, I was expected to somehow make the higher levels work better for students. It was all just too random for me. There was very little of practical utility for the students. I can't imagine how they'd use such structures in real life, especially if they are not going abroad.
To me, language acquisition is, first and foremost, about what you can meaningfully use in a variety of contexts. Callan just didn't allow for that. In the earlier stages, subject-verb agreement was very well taken care of. Matching auxiliaries is the main strength of the method in stages 3,4 and, to a lesser extent, 5 and 6.
For me, university really taught me to think out of the box. Extrapolation etc etc. Callan's learning parameters are just too restrictive. Avalon sought to change that but wasn't entirely successful I gather from those that use it.