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 design aims to manage this load to optimize learning. According to cognitive load theory, learning is hindered when the intrinsic complexity of the material, combined with the way it is presented, exceeds the learner's cognitive capacity. Extraneous cognitive load, caused by poorly designed instruction, can be reduced by simplifying presentations, while germane load, which facilitates learning, should be encouraged. Recent studies suggest that adaptive multimedia environments, which adjust content based on learner performance, can significantly reduce extraneous load, thereby improving comprehension and retention. However, critics argue that such technologies may inadvertently increase intrinsic load for novices by introducing unfamiliar interactive elements. Thus, the effectiveness of adaptive systems depends on balancing learner prior knowledge and the complexity of the task.