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When Helpful Analogies Teach the Wrong Lesson

Analogies can make difficult ideas easier, but they can also leave learners with the wrong model.

On this page

  • Why analogies work
  • Where comparisons break
  • Teaching the limits clearly
Preview for When Helpful Analogies Teach the Wrong Lesson

Introduction

Analogies are ubiquitous in communication and education because they map what is unfamiliar onto something familiar, making complex ideas feel accessible. However, this very strength can become a weakness: misleading analogies can create misconceptions by implying inappropriate or incomplete similarities between the comparison and the target concept, embedding distorted mental models that persist even after correction. In the context of Myths and misconceptions, understanding how analogies mislead is crucial because they don’t just decorate thinking — they actively shape it. Readers will learn why analogies seduce our cognition, where they break down, and how to signal their limits to avoid reinforcing false beliefs.[PubMed]pubmed.ncbi.nlm.nih.govPub Med Analogies in science and science teachingPubMedAnalogies in science and science teaching - PubMed…

Overview image for Analogies

Why Analogies Often Feel Convincing

Analogies work by aligning the structure or relational patterns between a familiar “source” domain and a less familiar “target” domain. When the parts match in a meaningful way, they help learners infer properties of the unfamiliar by reference to the known. This mechanism — often termed structure‑mapping — explains why analogies are such powerful cognitive tools in science, education and everyday reasoning.[PubMed]pubmed.ncbi.nlm.nih.govPub Med Analogies in science and science teachingPubMedAnalogies in science and science teaching - PubMed…

The same appeal that draws learners in, however, also invites oversimplification. Because analogies rely on selective mapping, they emphasise some features at the expense of others. People naturally focus on familiar alignable features and ignore unaligned but critical aspects of the target, which can lead to overextension of the analogy and superficial thinking that feels like understanding but isn’t.[ScienceDirect]sciencedirect.comScienceDirect When analogies harm: The effects of analogies on metacomprehensionScienceDirectWhen analogies harm: The effects of analogies on metacomprehension - ScienceDirectJune 1, 2018…Published: June 1, 2018

Analogies illustration 1

Where Comparisons Break and Mislead

Inadequate Source Domains

An analogy can mislead when the source domain doesn’t adequately represent the complexity of the target. Research in cognitive science shows that learners may adopt erroneous aspects of a familiar system as if they applied literally to the new concept if they don’t grasp the structural boundaries of the comparison. For example, using household plumbing as an analogy for blood circulation can cause learners to emphasise resistance and overlook the flexible, dynamic properties of blood vessels that don’t map neatly onto rigid pipes.[PMC]

Similarly, geology education researchers have noted that spatial analogies of geologic time — compressing billions of years into an intuitive spatial diagram — can mislead learners into believing that certain biological events happened earlier than they did, merely because the spatial metaphor suggested such an ordering.[Springer]

Why Every Brain Metaphor in History Has Been Wrong [SPECIAL EDITION]

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Overextension and Missing Structure

Another common pitfall is overextension, where learners apply aspects of the source domain that aren’t relevant to the target concept. Analogies may highlight a few shared features but ignore deep causal mechanisms that actually define the target. When this happens, learners build partial models anchored on the analogy and fail to integrate essential properties that lie outside the comparison. Studies find that, in educational contexts, students can experience a misleading sense of understanding — believing they grasp a concept because the analogy feels familiar — even when their real comprehension is shallow.[ScienceDirect]sciencedirect.comScienceDirect When analogies harm: The effects of analogies on metacomprehensionScienceDirectWhen analogies harm: The effects of analogies on metacomprehension - ScienceDirectJune 1, 2018…Published: June 1, 2018

This dynamic can be particularly pernicious in text comprehension: readers judge their understanding based on the ease and familiarity of an analogy rather than the accuracy of the conceptual mapping. In experiments with expository science texts, the presence of analogies lowered the accuracy of readers’ metacognitive judgments about what they truly understood, especially when they relied on superficial cues like familiarity instead of deeper structural alignment.[ScienceDirect]sciencedirect.comScienceDirect When analogies harm: The effects of analogies on metacomprehensionScienceDirectWhen analogies harm: The effects of analogies on metacomprehension - ScienceDirectJune 1, 2018…Published: June 1, 2018

Analogies illustration 2

Entrenchment in Scientific Discourse

Analogies not only affect novices. Historical analysis of scientific practice shows that entrenched analogies can shape entire research agendas by directing attention to certain features and away from others. When metaphorical correspondences become embedded, scientists may unconsciously treat them as literal truths, embedding model‑laden descriptions into the conceptual core of a discipline rather than as provisional tools. This phenomenon has been documented in historical studies of 19th‑century scientific discourse, where unexamined metaphors about human variation influenced research methods and interpretations.[MIT Press Direct]direct.mit.eduMIT Press DirectMisled by Metaphor: The Problem of Ingrained Analogy | Perspectives on Science | MIT PressApril 1, 2019…Published: April 1, 2019

Teaching the Limits Clearly

Make Structure Explicit

One key way to mitigate analogy‑induced misconceptions is to explicitly teach the mapping: identify which features of the source and target domains are aligned and, importantly, where the analogy does not apply. Teachers and communicators should state the limits of the comparison as clearly as the similarities, so learners don’t unwittingly project irrelevant aspects of the source onto the target.[Springer]

Educational research also suggests that warning learners about the conditions and constraints of analogies — for example, indicating when certain properties do not transfer — reduces the risk of misconception. Analogies should be accompanied by scaffolding that helps learners check which inferences are valid and which are not.[researchonline.jcu.edu.au]researchonline.jcu.edu.auAnalogies in science and science teachingAnalogies in science and science teaching

How to Think Using Analogies

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Use Multiple Analogies Strategically

Relying on a single analogy can be risky because no comparison captures all facets of a complex concept. Introducing multiple analogies that emphasise different structural aspects can create a more robust mental model, helping learners see where one analogy leaves gaps that another fills. However, care is needed: research shows that multiple metaphors can also confuse if presented without clear context and critical framing.[Taylor & Francis Online]tandfonline.comTaylor & Francis Online Full article: Analogy competence for science teachersTaylor & Francis OnlineFull article: Analogy competence for science teachersDecember 5, 2024…Published: December 5, 2024

Analogy as the Core of Cognition

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Foster Analogy Discrimination Skills

Finally, learners benefit from developing analogy discrimination skills — the ability to identify which features of a source domain are truly relevant and which are superficial. Instruction that helps students compare and contrast different analogical mappings strengthens their capacity to avoid superficial inferences and supports deeper conceptual transfer.[ScienceDirect]sciencedirect.comScienceDirect When analogies harm: The effects of analogies on metacomprehensionScienceDirectWhen analogies harm: The effects of analogies on metacomprehension - ScienceDirectJune 1, 2018…Published: June 1, 2018

Analogies illustration 3

Final Reflection

Analogies are both a cognitive crutch and a cognitive trap. They can gently illuminate the unfamiliar, but unless accompanied by careful framing, explicit limits, and critical reflection, they can mislead — embedding misconceptions that are hard to unseat. For anyone engaging with analogical reasoning, the goal is not to avoid analogies but to use them wisely and transparently, signalling where they illuminate and where they blur the truth.[PMC]

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Endnotes

  1. Source: pmc.ncbi.nlm.nih.gov
    Title: PMCRelational Reasoning and Educational Applications
    Link: https://pmc.ncbi.nlm.nih.gov/articles/PMC12938770/

  2. Source: sciencedirect.com
    Title: ScienceDirect When analogies harm: The effects of analogies on metacomprehension
    Link: https://www.sciencedirect.com/science/article/abs/pii/S0959475217303067
    Source snippet

    ScienceDirectWhen analogies harm: The effects of analogies on metacomprehension - ScienceDirectJune 1, 2018...

    Published: June 1, 2018

  3. Source: link.springer.com
    Link: https://link.springer.com/article/10.1186/s41235-017-0054-7
    Source snippet

    SpringerUsing analogy to learn about phenomena at scales outside human perception | Cognitive Research: Principles and Implications | Spr...

  4. Source: direct.mit.edu
    Link: https://direct.mit.edu/posc/article/27/2/153/15419/Misled-by-Metaphor-The-Problem-of-Ingrained
    Source snippet

    MIT Press DirectMisled by Metaphor: The Problem of Ingrained Analogy | Perspectives on Science | MIT PressApril 1, 2019...

    Published: April 1, 2019

  5. Source: link.springer.com
    Title: Good Use of a ‘Bad’ Metaphor | Science & Education | Springer Nature Link
    Link: https://link.springer.com/article/10.1007/s11191-017-9892-4
    Source snippet

    SpringerGood Use of a ‘Bad’ Metaphor | Science & Education | Springer Nature LinkApril 27, 2017...

    Published: April 27, 2017

  6. Source: researchonline.jcu.edu.au
    Title: Analogies in science and science teaching
    Link: https://researchonline.jcu.edu.au/53036/

  7. Source: sciencedirect.com
    Title: ScienceDirect Learning by analogy: Discriminating between potential analogs
    Link: https://www.sciencedirect.com/science/article/abs/pii/S0361476X09000381
    Source snippet

    ScienceDirectLearning by analogy: Discriminating between potential analogs - ScienceDirectJanuary 1, 2010...

    Published: January 1, 2010

  8. Source: pmc.ncbi.nlm.nih.gov
    Link: https://pmc.ncbi.nlm.nih.gov/articles/PMC5969428/
    Source snippet

    PMCMarch 30, 2018...

    Published: March 30, 2018

  9. Source: sciencedirect.com
    Title: Fostering [conceptual change]({{ ‘concept-change/’ | relative_url }}) by analogies—between Scylla and Charybdis
    Link: https://www.sciencedirect.com/science/article/abs/pii/S0959475200000347
    Source snippet

    ScienceDirectAugust 1, 2001 — LEARNING AND INSTRUCTION Volume 11, Issues 4–5, August–October 2001, Pages 283-303 FOSTERING CONCEPTUAL CHA...

    Published: August 1, 2001

  10. Source: sciencedirect.com
    Link: https://www.sciencedirect.com/science/article/pii/S0361476X23000267
    Source snippet

    ScienceDirectCONTEMPORARY EDUCATIONAL PSYCHOLOGY Volume 73, April 2023, 102172 LEARNING FROM [REFUTATION TEXTS]({{ 'refutation-texts/' | relative_url }}) ABOUT SCIENTIFIC TOPICS WIT...

    Published: April 2023

  11. Source: pubmed.ncbi.nlm.nih.gov
    Title: Pub Med Analogies in science and science teaching
    Link: https://pubmed.ncbi.nlm.nih.gov/21098382/
    Source snippet

    PubMedAnalogies in science and science teaching - PubMed...

  12. Source: tandfonline.com
    Title: Taylor & Francis Online Full article: Analogy competence for science teachers
    Link: https://www.tandfonline.com/doi/full/10.1080/03057267.2024.2434797
    Source snippet

    Taylor & Francis OnlineFull article: Analogy competence for science teachersDecember 5, 2024...

    Published: December 5, 2024

Additional References

  1. Source: zgd-journal.de
    Link: https://www.zgd-journal.de/index.php/zgd/en/article/view/220
    Source snippet

    December 31, 2007 — MISLEADING ANALOGIES THAT LEAD TO THE BELIEF THAT THE MANTLE OF THE EARTH IS LIQUID AUTHORS * José Sellés-Martínez DO...

    Published: December 31, 2007

  2. Source: nzcer.org.nz
    Link: https://www.nzcer.org.nz/nzcerpress/curriculum-matters/articles/linguistic-threats-associated-metaphors-about-evolution

  3. Source: portal.research.lu.se
    Link: https://portal.research.lu.se/en/publications/analogy-use-in-textbook-introductions-to-isostasy-presentations-p
    Source snippet

    Dunnett, Thomas J. Barnes, A. Mattias Lundmark * National Resource Centre for Physics Education * Unive...

  4. Source: portal.research.lu.se
    Link: https://portal.research.lu.se/sv/publications/analogy-use-in-textbook-introductions-to-isostasy-presentations-p
    Source snippet

    Dunnett, Thomas J. Barnes, A. Mattias Lundmark SAMMANFATTNING In teaching, analogies can be used to su...

  5. Source: lunduniversity.lu.se
    Title: Dunnett * Thomas J. Barnes * A. Mattias Lundmark
    Link: https://www.lunduniversity.lu.se/lup/publication/855f0c42-d510-4a20-91f3-12befd4426ca
    Source snippet

    use in textbook introductions to isostasy: Presentations, perceptions and physics | Lund UniversityANALOGY USE IN TEXTBOOK INTRODUCTIONS...

  6. Source: youtube.com
    Title: Misconceptions and Education with David Butler
    Link: https://www.youtube.com/watch?v=JbVSDmERpxw
    Source snippet

    This selection of videos is relevant because it explores how cognitive shortcuts and metaphorical thinking can lead to flawed reasoning...

  7. Source: research-portal.uea.ac.uk
    Title: uea.ac.uk Mind the metaphor!
    Link: https://research-portal.uea.ac.uk/en/publications/mind-the-metaphor-a-systematic-fallacy-in-analogical-reasoning
    Source snippet

    A systematic fallacy in analogical reasoning - University of East AngliaJanuary 1, 2015 — MIND THE METAPHOR! A SYSTEMATIC FALLACY IN ANAL...

    Published: January 1, 2015

  8. Source: ueaeprints.uea.ac.uk
    Title: uea.ac.uk Mind the metaphor!
    Link: https://ueaeprints.uea.ac.uk/id/eprint/51714/
    Source snippet

    A systematic fallacy in analogical reasoning - UEA Digital RepositoryJanuary 9, 2015 — MIND THE METAPHOR! A SYSTEMATIC FALLACY IN ANALOGI...

    Published: January 9, 2015

  9. Source: pmc.ncbi.nlm.nih.gov
    Link: https://pmc.ncbi.nlm.nih.gov/articles/PMC5357664/
    Source snippet

    Although novices are sometimes reasonably accurate at ranking phenomena in a correct sequence, they have diffic...

  10. Source: tandfonline.com
    Link: https://www.tandfonline.com/doi/abs/10.1080/03057640220147577
    Source snippet

    The Place of Analogies in Science Education: Cambridge Journal of Education: Vol 32, No 2July 1, 2010 — Cambridge Journal of Education Vo...

    Published: July 1, 2010

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