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 (CLT) suggests that learning is most effective when instructional materials are designed to reduce extraneous cognitive load, thereby freeing resources for the intrinsic load necessary for schema construction. Recent studies have shown that multimedia presentations, while often engaging, can inadvertently increase extraneous load if they include redundant information or poorly integrated visuals. Conversely, well-structured diagrams paired with concise verbal explanations can enhance learning by facilitating the integration of information. However, researchers caution that the optimal level of cognitive load varies among individuals, depending on prior knowledge and task complexity, making it difficult to prescribe universal design guidelines.