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.
❓ Según el pasaje, ¿cuál es la razón principal por la que se considera que los sistemas de aprendizaje adaptativo son beneficiosos?
A. Reducen todos los tipos de carga cognitiva a niveles mínimos.
B. Ajustan el nivel de dificultad para adaptarse al conocimiento existente del aprendiz.
C. Eliminan la necesidad de que los estudiantes realicen un procesamiento profundo.
D. Se centran únicamente en reducir la carga cognitiva extrínseca.
✅ 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