雅思阅读

📖 Reading Passage

The concept of 'cognitive load' refers to the total amount of mental effort being used in the working memory. In educational psychology, cognitive load theory suggests that learning is most effective when instructional materials are designed to reduce extraneous cognitive load, thereby freeing resources for the intrinsic processing of complex information. Recent studies have shown that multimedia presentations, while potentially engaging, can inadvertently increase extraneous load if visual and auditory streams present redundant or conflicting information. Conversely, well-structured diagrams paired with concise verbal explanations can optimize germane load, which directly contributes to schema construction. However, researchers caution that the optimal balance of load types is not universal; it varies with the learner's prior knowledge and the complexity of the subject matter. Thus, instructional designers must adapt their strategies to individual differences, rather than relying on a one-size-fits-all approach.