Final answer:
Discrete trial teaching is adult-led with structured trials, while naturalistic teaching is child-led and occurs within natural settings.
Step-by-step explanation:
Discrete trial teaching differs from naturalistic teaching strategies in that discrete trial instruction is adult-initiated and naturalistic teaching strategies are child-initiated. Discrete trial instruction involves a structured approach where the adult sets up a teaching trial and provides clear instructions, rewards, and corrections. In contrast, naturalistic teaching strategies, such as the ones observed in naturalistic observations, occur within the child's natural environment and are initiated by the child's interests or actions, allowing the child to interact more freely and comfortably within their familiar surroundings.