Project TND includes 12 classroom-based sessions. Each session is 40 to 50 minutes in length. Each session includes a review of the previous session, a primary activity, and a review of the activity. The method utilized for reviews and summaries is the TND Game, in which teams of students compete for points by answering questions about the curriculum material.

Overall, the sessions are highly interactive, with the use of the Socratic method, classroom discussions, skill demonstrations, role-playing, and psychodrama techniques throughout the curriculum.

One of the new features of 3rd Edition is the inclusion of an optional instructional format in sessions 1, 3 and 6. The optional format involves delivery of the same program content, but through the use of small groups rather than discussion with the entire class.