"The most effective lessons included more than one of these elements:
Lessons that result in an end product--a booklet, a catapult, a poem, or a comic strip, for example.
Lessons that are structured as competitive games.
Lessons requiring motor activity.
Lessons requiring boys to assume responsibility for the learning of others.
Lessons that require boys to address open questions or unsolved problems.
Lessons that require a combination of competition and teamwork.
Lessons that focus on independent, personal discovery and realization.
Lessons that introduce drama in the form of novelty or surprise."