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2 references
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- Vol 2 RE: Chapter 4
- Vol 2 TE: App B
- Vol 4 RE: Chapters 10, 14, 16, 22, App A, App B, App C
- Vol 4 TE: App C
problem-based learningself-directed learningcollaborative problem solvingflexible knowledgeintrinsic motivationinstructional scaffoldingprior knowledgeJournal article Evidence summaryAt a glance
Hmelo-Silver reviews what students learn through problem-based learning and the processes intended to produce those outcomes. In PBL, learners work collaboratively on a complex problem without one predetermined answer, identify what they need to know, pursue self-directed study, apply new knowledge, and reflect on both the solution and their strategies.
Key ideas
The teacher facilitates rather than simply transmits information. The approach aims to develop flexible knowledge, effective problem-solving, self-directed learning, collaboration, and intrinsic motivation. The review connects these goals with cognitive and motivational theory and examines evidence from medical and other professional education. Students may acquire somewhat less immediately testable factual knowledge in some comparisons, yet often show advantages in application, retention, reasoning, and learning skills, with outcomes depending on curriculum design and assessment. Tutorial interaction, prior knowledge, problem quality, group functioning, and facilitation shape the learning process.
Why it matters
PBL is therefore not a single treatment or unguided discovery. Its effectiveness depends on scaffolding inquiry, aligning problems and assessments with goals, and supporting students as responsibility gradually shifts toward them.
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- Vol 2 RE: Chapter 4, App C, App D
- Vol 7 RE: Chapter 5
inquiry learninginstructional scaffoldingcognitive loadteacher facilitationstaged fadingepistemic practicesflexible knowledgeJournal article Evidence summaryAt a glance
Hmelo-Silver, Duncan, and Chinn respond to claims that problem-based and inquiry learning provide minimal guidance and overload novices. They argue that established forms of PBL and inquiry are not unguided discovery: teachers and learning environments supply extensive scaffolding while students investigate authentic problems or phenomena.
Key ideas
Supports include carefully designed tasks, facilitation, prompts, modelling, questioning, representations, collaboration structures, resources, and staged fading of assistance. These measures reduce unnecessary cognitive load, direct attention toward productive reasoning, and make disciplinary practices accessible without replacing learners’ intellectual work. The authors also broaden the outcomes under consideration. Such approaches aim not only at immediate factual recall but at flexible knowledge, problem solving, epistemic practices, collaboration, and self-directed learning. Evidence must therefore be interpreted in relation to the actual instructional design and intended goals.
Why it matters
The article does not claim that every inquiry implementation succeeds or that novices need no explicit teaching. Its central distinction is between minimally guided discovery and scaffolded, facilitated inquiry, making implementation quality and alignment between supports, learners, content, and outcomes decisive.
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Edition abbreviations
- TE
- Teacher Edition
- PE
- Practice Edition
- RE
- Research Edition
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