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Philosophy · Grade 11

Active learning ideas

Defining Truth and Knowledge

This topic introduces epistemology by defining knowledge as justified true belief and exploring the criteria for truth. Students examine how we distinguish between mere opinion and actual knowledge, a skill that is vital in an era of misinformation. The Ontario curriculum emphasizes the ability to identify epistemological questions and explain various theories of truth, such as correspondence, coherence, and pragmatic theories.

Ontario Curriculum ExpectationsHZB3M C1.1: Identify the main questions in epistemologyHZB3M C1.2: Explain various philosophical theories of truth
20–45 minPairs → Whole Class3 activities

Activity 01

Inquiry Circle45 min · Small Groups

Inquiry Circle: The Truth Test Lab

Give groups a set of claims (e.g., 'The earth is round,' 'Stealing is wrong'). They must apply the correspondence, coherence, and pragmatic theories of truth to each claim and determine which test works best for which type of knowledge.

What is the difference between belief and knowledge?
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Activity 02

Think-Pair-Share20 min · Pairs

Think-Pair-Share: The Gettier Problem

Present a classic Gettier case where someone has a justified true belief that isn't knowledge. Students work in pairs to figure out what is 'missing' from the definition of knowledge in that scenario.

How do we justify our beliefs?
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Activity 03

Gallery Walk35 min · Small Groups

Gallery Walk: Cultural Ways of Knowing

Display posters explaining different ways knowledge is justified in various cultures (e.g., scientific method, oral tradition, intuition). Students rotate and leave comments on how these methods overlap or conflict.

Is truth objective or subjective?
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A few notes on teaching this unit


Watch Out for These Misconceptions

  • If I believe it strongly enough, it becomes true for me.

    Philosophy distinguishes between subjective belief and objective truth. Active learning exercises that require external justification help students see that truth requires more than just personal conviction.

  • Knowledge and information are the same thing.

    Knowledge requires justification and truth, whereas information can be false or unjustified. Peer teaching exercises where students explain the 'justification' part of a claim can clarify this difference.


Methods used in this brief