How the course is organized — 26 lessons in seven modules, each one read, practice with the AI controller, then test — and what TowerTalk is: a training aid alongside the AIM, your instructor and your examiner, not a replacement for them.
The course puts the TowerTalk material in order so each skill builds on the one before: getting started, the language of aviation radio (the alphabet, numbers, call signs, the standard words and readbacks), building a radio call, airport communications, airspace, services and transponders, abnormal and emergency calls, and finally a whole flight from start to finish.
Every lesson works the same way. Read the notes and the study cards, then practice the calls with the AI controller — spoken or typed, graded against the FAA AIM — and take the lesson's test where it has one. Mark the lesson complete when you are done.
Everything follows the Aeronautical Information Manual and the Pilot/Controller Glossary. The AIM is plain about the standard: jargon, chatter and CB slang have no place in ATC communications, and good phraseology as defined in the glossary is the standard.
TowerTalk is a study aid. Always defer to the AIM, the Pilot/Controller Glossary and current official publications, and to your instructor and examiner.