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 minimize extraneous cognitive load, thereby freeing resources for the intrinsic load associated with the material itself. However, recent studies have challenged the assumption that reducing extraneous load always enhances learning. For instance, some researchers argue that a moderate level of desirable difficulty, such as introducing occasional interruptions or complex problem-solving tasks, can actually promote deeper processing and long-term retention. This perspective emphasizes that the optimal level of cognitive load may vary depending on the learner's prior knowledge and the complexity of the subject matter. Therefore, instructional designers must strike a delicate balance between simplifying content and challenging learners sufficiently to stimulate meaningful engagement.