{
  "schema": "vedokrok.public-item.v1",
  "release_id": "MHC-RPUB-20261011-9e4b62c5",
  "url": "/knowledge/try-the-problem-before-you-study-the-method",
  "id": "MHC-D-RESEARCH-9239",
  "version": "0.2.0",
  "title": "Try the problem before you study the method",
  "summary": "A short attempt can prepare the question that instruction needs to answer.",
  "kind": "protocol",
  "body": "For a safe learning task, make a bounded attempt before reading the canonical method. Build one plausible solution path, note where it breaks, then study the explanation and compare it with your attempt. A 53-study meta-analysis favored problem-solving before instruction on average, but results vary. The sequence is attempt, instruction, comparison and retry—not unguided struggle.",
  "limits": [
    "Evidence is concentrated in education, especially mathematics and physics; a 2025 biology study found opposite near-transfer effects across cohorts and no far-transfer advantage. Teach first for safety-critical procedures, missing prerequisites or unmanaged overload."
  ],
  "topics": [
    "union-learning-difficulty-and-transfer"
  ],
  "intents": [],
  "evidence": [
    {
      "claim": "A 2026 review concludes that testing, spacing, interleaving and productive-failure approaches can function as desirable difficulties, while warning that greater perceived difficulty or disfluency should not itself be treated as evidence of better learning.",
      "role": "supports",
      "note": "The review synthesizes multiple literatures and does not provide one scalar difficulty target for individual learners or tasks.",
      "locator": "Abstract",
      "source_id": "RS-3C08F632357356DC17F0"
    },
    {
      "claim": "A 2024 review argues that the effect of added difficulty depends on material complexity and learner expertise: difficulty can aid retrieval-based learning but excess extraneous load can hinder schema formation.",
      "role": "supports",
      "note": "The proposed integrated model is theoretical and should be used as a design boundary, not a validated personalization algorithm.",
      "locator": "Abstract",
      "source_id": "RS-FDBBC64F19A334A1"
    },
    {
      "claim": "A meta-analysis of 53 studies and 166 comparisons found a moderate average advantage for problem solving before instruction over instruction before problem solving on conceptual knowledge and transfer (Hedges' g=0.36, 95% CI 0.20 to 0.51), with stronger estimates when productive-failure design principles were implemented with higher fidelity.",
      "role": "supports",
      "note": "The literature was concentrated in mathematics and physics, moderator results show the sequence is not universally superior, and the review does not justify unguided discovery without a subsequent instruction phase.",
      "locator": "Abstract and implications",
      "source_id": "RS-2CB218CBA41DE0F62F5A"
    },
    {
      "claim": "Two 2025 classroom experiments using the same biochemistry materials found opposite near-transfer advantages across student populations: problem-solving-first performed better in introductory biology students, while instruction-first performed better in biochemistry students; neither experiment found a significant far-transfer difference.",
      "role": "limits",
      "note": "The effects were small and limited to near transfer, the samples came from one domain, and the authors state that the reversal cannot be attributed to prior knowledge alone.",
      "locator": "Experiments 1-2 results and General Discussion",
      "source_id": "RS-E32649E8C6B4B33B7E9B"
    }
  ],
  "use_when": [
    "You need conceptual understanding or transfer and are about to read the method before forming any model yourself."
  ],
  "avoid_when": [
    "Evidence is concentrated in education, especially mathematics and physics; a 2025 biology study found opposite near-transfer effects across cohorts and no far-transfer advantage. Teach first for safety-critical procedures, missing prerequisites or unmanaged overload."
  ],
  "example": "Before a database-normalization tutorial, sketch how you would split one small table. Study the rules, mark where your model differed, then normalize a second table unaided.",
  "check": "You can name one flaw in your first model and solve a nearby case without copying the worked example.",
  "source_ids": [
    "RS-3C08F632357356DC17F0",
    "RS-FDBBC64F19A334A1",
    "RS-2CB218CBA41DE0F62F5A",
    "RS-E32649E8C6B4B33B7E9B"
  ],
  "published_at": "2026-10-01T14:27:00Z",
  "steps": [
    "Check that basic prerequisites are present and a wrong attempt is harmless.",
    "Spend a short fixed period building one or two plausible approaches.",
    "Study the explanation and compare its key moves with your attempt.",
    "Retry a nearby case unaided; teach first if the attempt was mostly random or overloaded."
  ],
  "editorial_overlay": null,
  "editorial": null,
  "notices": [],
  "sources": [
    {
      "id": "RS-3C08F632357356DC17F0",
      "title": "Why Desirable Difficulties 'Work': A Review of the Evidence From Cognitive and Educational Psychology and Some Caveats for the Health Professions Education Field",
      "url": "https://doi.org/10.1111/jep.70349"
    },
    {
      "id": "RS-FDBBC64F19A334A1",
      "title": "Does difficulty moderate learning? A comparative analysis of the desirable difficulties framework and cognitive load theory",
      "url": "https://pubmed.ncbi.nlm.nih.gov/39641213/"
    },
    {
      "id": "RS-2CB218CBA41DE0F62F5A",
      "title": "When Problem Solving Followed by Instruction Works: Evidence for Productive Failure",
      "url": "https://doi.org/10.3102/00346543211019105"
    },
    {
      "id": "RS-E32649E8C6B4B33B7E9B",
      "title": "Does Instruction-First or Problem-Solving-First Depend on Learners’ Prior Knowledge?",
      "url": "https://doi.org/10.1007/s10648-025-09993-3"
    }
  ],
  "relations": [
    {
      "from": "MHC-D-RESEARCH-9239",
      "to": "MHC-D-RESEARCH-1262",
      "type": "useful_with",
      "url": "/knowledge/make-difficulty-earn-its-keep"
    },
    {
      "from": "MHC-D-RESEARCH-9239",
      "to": "MHC-D-RESEARCH-9237",
      "type": "use_before",
      "url": "/knowledge/explain-the-rule-before-you-reuse-the-example"
    }
  ],
  "collections": [
    {
      "id": "RC-09A19A5D8E0ED62D",
      "title": "Make practice harder only when the difficulty teaches the right thing",
      "url": "/collections/make-practice-harder-only-when-the-difficulty-teaches-the-right-thing"
    }
  ],
  "topic_hubs": [],
  "solution_packs": []
}