In applying cognitive load theory to online instruction, which practice best reduces extraneous load and optimizes working memory?

• A. Present all content in a single long segment.
• B. Segment information into chunks and pair visuals with concise explanations.
• C. Increase multimedia without guidance.
• D. Eliminate pacing and let learners proceed at random.

Answer: (B)

Reducing extraneous cognitive load to free working memory is the idea this question emphasizes. Segmenting information into chunks prevents overload by allowing processing to occur in smaller, manageable units, aligned with how working memory handles limited bits of data at a time. Pairing visuals with concise explanations supports the brain’s dual-channel processing, so learners can interpret diagrams and narration together rather than juggling separate pieces, which often leads to split attention and extra effort. Together, chunking and well-aligned visuals streamline the instructional design, making it easier to encode new information into long-term memory. In contrast, a single long segment, unlimited multimedia without guidance, or removing pacing tends to overwhelm or confuse learners, increasing extraneous load rather than reducing it.