The concept of 'cognitive load' refers to the total amount of mental effort being used in the working memory. In educational settings, excessive cognitive load can hinder learning, as learners may become overwhelmed by complex information. However, research suggests that instructional design can mitigate this by breaking down content into smaller, manageable segments, a technique known as 'chunking'. Additionally, the use of multimedia, such as diagrams alongside text, can reduce extraneous load by presenting information in multiple modalities. Yet, not all multimedia is beneficial; poorly integrated visuals may increase split-attention effects, where learners must divide their attention between disparate sources. Therefore, effective pedagogical strategies must balance the intrinsic complexity of the subject matter with the learner's existing cognitive capacity, ensuring that working memory is optimized rather than overloaded.
❓ Theo đoạn văn, nhược điểm tiềm ẩn của việc sử dụng đa phương tiện trong giảng dạy là gì?
A. A) Nó luôn làm tăng tải nhận thức.
B. B) Nếu tích hợp kém, nó có thể gây ra hiệu ứng phân tán sự chú ý.
C. C) Nó làm giảm độ phức tạp nội tại của chủ đề.
D. D) Nó ngăn cản việc sử dụng chunking.
✅ 正确答案
B) It can cause split-attention effects if poorly integrated.
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