Philosophy · Year 12 · Epistemology: The Nature and Sources of Knowledge · 1.º Período

Reason as a Source of Knowledge

A comparison of rationalist and empiricist approaches to innate knowledge. Students will evaluate Descartes' intuition and deduction thesis.

TL;DR:Reason as a Source of Knowledge explores the classic tension between Rationalism and Empiricism. Students compare the belief that some knowledge is innate (Innatism) with the view that the mind is a 'tabula rasa' or blank slate at birth. This topic is central to the AQA specification, focusing on Plato's slave boy argument and Leibniz's defense of necessary truths.

• National Curriculum Attainment Targets
• AQA 7172: Epistemology 3.1.3.1
• AQA 7172: Epistemology 3.1.3.2

About This Topic

Reason as a Source of Knowledge explores the classic tension between Rationalism and Empiricism. Students compare the belief that some knowledge is innate (Innatism) with the view that the mind is a 'tabula rasa' or blank slate at birth. This topic is central to the AQA specification, focusing on Plato's slave boy argument and Leibniz's defense of necessary truths.

Students also evaluate Descartes' rationalist project, specifically his use of intuition and deduction to establish truths about the self, God, and the external world. This unit requires students to weigh historical arguments against modern psychological insights. Students grasp this concept faster through structured discussion and peer explanation of how they 'know' mathematical or logical truths.

Key Questions

1. Are we born with innate ideas?
2. How does Descartes use intuition and deduction to build knowledge?
3. How do empiricists like Locke respond to innatism?

Watch Out for These Misconceptions

Common Misconception

Students often think 'innate' means you are born already thinking the thought.

What to Teach Instead

Innatism usually means we have the *capacity* or *disposition* to trigger these ideas. Using the analogy of a block of veined marble (Leibniz) in a hands-on activity helps students see that the 'pattern' is there before the 'sculpting' of experience begins.

Common Misconception

Students confuse 'intuition' with a 'gut feeling'.

What to Teach Instead

In philosophy, rational intuition is a clear and distinct intellectual seeing of a truth. Peer-checking definitions helps students distinguish between 'I have a feeling' and 'I rationally perceive this must be true'.

Active Learning Ideas

Simulation Game

The Tabula Rasa

Students are given a list of concepts (e.g., 'equality', 'God', 'blue', 'triangle'). They must sort them into those that could only come from experience and those that might be innate, defending their choices to the class.

25 min·Small Groups

Peer Teaching

Plato's Meno

One student acts as Socrates and another as the slave boy. Using only leading questions about a square, the 'Socrates' must lead the 'slave' to a mathematical truth, demonstrating the theory of anamnesis.

20 min·Pairs

Inquiry Circle

Descartes' Intuition and Deduction

Groups are given the 'building blocks' of Descartes' Meditations. They must arrange them in a logical sequence to show how he moves from the Cogito to the existence of the external world.

35 min·Small Groups

Frequently Asked Questions

What is the 'tabula rasa' theory?

Proposed by John Locke, it is the idea that the mind is a 'blank slate' at birth. All our knowledge and ideas come from experience, either through sensation (external) or reflection (internal).

How does Leibniz argue for innate ideas?

Leibniz argues that experience only gives us particular instances, but it cannot give us 'necessary truths' (like 2+2=4). Since we know these truths are always and everywhere true, they must be based on innate principles within the mind.

What are the best hands-on strategies for teaching Rationalism?

Logic puzzles and mathematical proofs are excellent. When students solve a geometry problem, they often experience a sense of 'rational necessity', the feeling that the answer couldn't be any other way. Reflecting on this experience in a think-pair-share session helps them understand what rationalists mean by 'intuition' and 'innate structures'.

What is the difference between intuition and deduction?

Intuition is the immediate 'seeing' of a truth (e.g., I exist). Deduction is the process of moving from one certain truth to another through logical steps (e.g., If I exist and God is perfect, then God wouldn't deceive me about the world).