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 aim 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 available working memory capacity. Extraneous cognitive load, which is caused by poor instructional design, can be reduced by simplifying presentations, while germane load, which fosters schema construction, should be encouraged. Recent studies suggest that adaptive learning systems, which tailor content to individual learner's prior knowledge, can effectively balance these loads, thereby improving retention and transfer of knowledge. However, critics argue that over-optimization may lead to superficial processing, as learners may not engage deeply with the material if the cognitive burden is too low. Thus, a nuanced approach is necessary to strike a balance between challenge and support.
❓ According to the passage, what is the primary reason why adaptive learning systems are considered beneficial?
A. They reduce all types of cognitive load to minimal levels.
B. They adjust the level of difficulty to match the learner's existing knowledge.
C. They eliminate the need for learners to engage in deep processing.
D. They focus solely on reducing extraneous cognitive load.
✅ 正确答案
They adjust the level of difficulty to match the learner's existing knowledge.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first