雅思阅读

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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 is high and is further exacerbated by poor instructional design that introduces extraneous load. For instance, presenting information in a disjointed manner or requiring learners to integrate multiple sources of unrelated information can overload working memory, leaving insufficient capacity for schema construction. Effective strategies, such as segmenting complex tasks and using worked examples, can reduce extraneous load and free up cognitive resources for deeper processing. However, researchers caution that over-simplification may reduce germane load, which is the load devoted to the processes of learning itself, thereby diminishing the depth of understanding. Thus, a balance must be struck.