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Philosophy · Year 12

Active learning ideas

Berkeley's Idealism

Berkeley's Idealism represents a radical shift in the Epistemology curriculum, moving from realism to the claim that 'esse est percipi' (to be is to be perceived). Students examine Berkeley's rejection of the distinction between primary and secondary qualities and his attack on the concept of mind-independent matter. This topic challenges students to follow a rigorous logical chain to a conclusion that seems to defy common sense.

National Curriculum Attainment TargetsAQA 7172: Epistemology 3.1.2.3
20–30 minPairs → Whole Class3 activities

Activity 01

Inquiry Circle30 min · Small Groups

Inquiry Circle: Attacking Primary Qualities

Students work in groups to apply Berkeley's arguments against secondary qualities (like heat) to primary qualities (like size). They must find examples where size or shape also seem relative to the perceiver.

Can objects exist unperceived?
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Activity 02

Gallery Walk25 min · Small Groups

Gallery Walk: Berkeley's God

Create stations explaining different roles God plays in Berkeley's system. Students move around, noting down how God solves the 'problem of continuity' (why the tree stays in the quad when no one is there).

How does Berkeley argue against mind-independent matter?
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Activity 03

Formal Debate20 min · Whole Class

Formal Debate: The Master Argument

One group defends Berkeley's claim that it is impossible to conceive of an unperceived object. The opposing group tries to provide a counter-example of a truly 'unconceived' thing.

What role does God play in Berkeley's idealism?
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A few notes on teaching this unit


Watch Out for These Misconceptions

  • Students often think Berkeley is saying the world is 'just a dream' or not real.

    Berkeley believes the world is perfectly real; he just thinks 'real' means 'composed of ideas' rather than 'composed of matter'. Active discussion about the 'solidity' of a table can help students see that Berkeley isn't denying the experience, just the underlying substance.

  • Students assume Berkeley's God is a 'cheat code' to fix a broken theory.

    For Berkeley, God is a logical necessity to explain the regularity and objectivity of our perceptions. Peer-led mapping of his argument helps students see God as a formal part of his epistemology rather than an afterthought.


Methods used in this brief