It is more likely that you have been teaching CFSH stuff for 31 years
and Prouty, Wagtendonk, Coyle and others. The CFS H teaching is a method of teaching not the syllabus and uses the best of the best techniques gleaned from all areas of education.
You do the course and then start learning your trade - the quality of instruction comes down to the character and personality of the instructor not the need to use the right colours.
AC are you referring to the OverHead Projector when you say vu-graph?I'm too young to know what one is otherwise
Jim Eli - it's all about Pelicans not chickens