The IISA was formed to provide the world with a systematic and regulated method of teaching a modular syllabus.
Conceptually you could take a lesson anywhere in England or the rest of the world and the lesson should be pretty much the same quality, methods and language/terminology where ever you go.
There are currently 3 levels of instructor within the IISA
Level 1 - Beginner to Intermediate skating lessons.
Level 2 - Intermediate to Advanced skating lessons.
Level 3 - Instructor Examiner - you teach new instructors.