Final answer:
Demonstrations can be differentiated by the level of engagement of the trainee.
Step-by-step explanation:
Demonstrations, like lectures, can be differentiated by the level of engagement of the trainee. While lectures involve passive listening and taking notes, demonstrations are more interactive and require active participation. The effectiveness of a demonstration depends on how engaged the trainee is in the learning process. For example, in an acting class, a demonstration may involve physical exercises that push the actors to their limits, requiring them to adapt and engage their bodies, breath, and intentions.