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 settings, instructional designers often seek to manage cognitive load to optimize learning. According to cognitive load theory, learning is hindered when the demands of a task exceed the learner's working memory capacity. This can occur due to the intrinsic complexity of the material, the way information is presented, or the unnecessary cognitive activities required by the instructional format. To mitigate this, educators might simplify content, use worked examples, or eliminate extraneous information. However, some researchers argue that a certain level of desirable difficulty can enhance long-term retention, suggesting that not all cognitive load is detrimental. Thus, the challenge lies in balancing the reduction of unnecessary load while maintaining productive challenges that promote deeper processing.