Sweller's worked examples unlock faster, deeper learning
How a quiet insight about working memory limitations grew into one of education's most evidence-backed teaching strategies.
Students learn up to 33% more effectively when initially taught through step-by-step examples before being asked to solve problems themselves, a phenomenon known as the 'worked example effect'. This counterintuitive finding, rooted in decades of cognitive load theory, demonstrates the power of demonstration in learning. Developed largely through the work of educational psychologist John Sweller, this approach highlights how strategic instruction can dramatically improve comprehension and retention. The theory...
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