The concept of 'cognitive load' refers to the total amount of mental effort being used in the working memory. In educational settings, cognitive load theory suggests that instructional designs should minimize extraneous cognitive load to facilitate learning. Extraneous load is generated by the way information is presented to learners, such as confusing layouts or irrelevant details, which do not contribute to schema acquisition. In contrast, intrinsic load is inherent to the complexity of the material itself, and germane load is devoted to processing and constructing schemas. Research indicates that when extraneous load is high, learners have fewer resources available for germane processing, thereby hindering deep understanding. Therefore, effective instructional materials often employ strategies like worked examples or split-attention formats to reduce unnecessary mental effort and promote better learning outcomes.
❓ 根据文章所述,高外部认知负荷对学习的主要影响是什么?
A. 它增加了主题本身的内在复杂性。
B. 它减少了可用于深度加工和理解的心理资源。
C. 它使教材对学生更具吸引力,也更令人难忘。
D. 它消除了图式构建中相关认知负荷的需求。
✅ 正确答案
It reduces the mental resources available for deep processing and understanding.