Final answer:
False, classroom management models can be based on various theories and approaches.
Step-by-step explanation:
The statement that all classroom management models should be underpinned by behaviourist theories is false.
Classroom management models are diverse and can be based on various theories and approaches, including behaviorism, constructivism, and humanism.
For example, constructivist models focus on student-centered learning, where students are actively involved in constructing their own knowledge, while humanistic models prioritize student autonomy, intrinsic motivation, and emotional well-being.