The teacher controls the environment in:

Classroom examples: setting clear rules and routines, using rewards or corrective feedback, programmed instruction, and behaviour modification techniques where the teacher controls the contingencies.

Why other theories are less appropriate: Cognitivism emphasizes internal mental processes rather than external control; Naturalism promotes learner-led, experience-based learning rather than teacher-controlled stimuli; Realism focuses on presenting real-world content but does not center on teacher-controlled reinforcement to shape behaviour.