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Types of Ambiguity

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About This MicroSim

This interactive MicroSim helps students classify examples of ambiguity by type (lexical, syntactic, referential) and explain how each undermines clear communication.. It supports the learning objectives in Chapter: Knowledge and Language.

How to Use

Use the interactive controls below the drawing area to explore the visualization. Hover over elements for additional information and click to see detailed descriptions.

Iframe Embed Code

You can add this MicroSim to any web page by adding this to your HTML:

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<iframe src="https://dmccreary.github.io/theory-of-knowledge/sims/types-of-ambiguity/main.html"
        height="450px"
        width="100%"
        scrolling="no"></iframe>

Lesson Plan

Grade Level

9-12 (High School / IB TOK)

Duration

15-20 minutes

Prerequisites

  • Understanding of language as a Way of Knowing in the TOK framework
  • Basic awareness that sentences can have multiple interpretations
  • Familiarity with the idea that precision in language affects knowledge claims

Learning Objectives

  • Analyze examples of ambiguity by classifying them as lexical, syntactic, or referential, and explain how each type undermines the communication of knowledge claims

Activities

  1. Exploration (5 min): Work through the first three example sentences in the sim. For each, read the sentence, select your classification (lexical, syntactic, or referential), and check your answer. Pay attention to the explanation provided for each -- note how lexical ambiguity involves word meaning, syntactic ambiguity involves sentence structure, and referential ambiguity involves unclear pronoun or noun references.
  2. Guided Practice (10 min): Classify all 10 sentences in the sim. After completing the set, review any you got wrong. In pairs, discuss: Which type of ambiguity was hardest to identify and why? Choose one sentence from each category and rewrite it to eliminate the ambiguity. Then discuss: How does each type of ambiguity create different problems for knowledge claims? For example, does lexical ambiguity in a scientific paper cause different problems than referential ambiguity in a legal document?
  3. Assessment (5 min): Write three original ambiguous sentences -- one lexical, one syntactic, and one referential. Exchange with a partner and classify each other's sentences. Discuss any disagreements about classification and what that reveals about the nature of linguistic ambiguity.

Assessment

  • Students correctly classify at least 8 of 10 sentences by ambiguity type
  • Rewritten sentences successfully eliminate the identified ambiguity
  • Original examples demonstrate understanding of the structural difference between the three types

Quiz

Test your understanding with this review question.

1. The sentence "Visiting relatives can be boring" is ambiguous. What type of ambiguity does it exhibit?

  1. Lexical ambiguity, because "boring" has multiple meanings
  2. Syntactic ambiguity, because the grammatical structure allows two different interpretations of "visiting relatives"
  3. Referential ambiguity, because it is unclear which relatives are meant
  4. Pragmatic ambiguity, because the speaker's intent is unknown
Show Answer

The correct answer is B. This is syntactic ambiguity because the phrase "visiting relatives" can be parsed two ways: "relatives who are visiting" (where "visiting" is an adjective) or "the act of visiting relatives" (where "visiting" is a gerund). The word "boring" itself is not ambiguous, and no specific referent is unclear -- the ambiguity arises entirely from sentence structure.

Concept Tested: Syntactic ambiguity and its effect on meaning

References

  1. IB Theory of Knowledge Guide, International Baccalaureate Organization, 2022.
  2. Empson, William. Seven Types of Ambiguity. New Directions, 1966.