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, which arises from poorly designed instruction, can be reduced by simplifying presentations, while germane load, which facilitates learning, should be encouraged. Research has shown that using worked examples and eliminating redundant information can significantly improve comprehension, especially for novices. However, as expertise grows, the effectiveness of such scaffolds diminishes, a phenomenon known as the 'expertise reversal effect.' Thus, adaptive instructional methods that tailor the level of guidance to the learner's proficiency are crucial for effective education.