• Home
  • Year 9
    • Unit 1 - Bronze Age Greece >
      • Lesson 1 - Minoa
      • Lesson 2 - Myths
      • Lesson 3 - Atlantis
      • Lesson 4 - The Mycenaeans
      • Lesson 5 - Troy
    • Unit 2 - Classical Greece >
      • Lesson 1 - Archaic Period >
        • End of Unit Test >
          • End of Unit Test - 1
      • Lesson 2 - Olympics
      • Lesson 3 - Athens
      • Lesson 4 - Democracy
      • Lesson 5 - Sparta
      • Lesson 6 - Greek Gods
      • Lesson 7 - Greek Legacy
      • End of Unit Test - 2
    • Unit 3 - Roman Republic >
      • Lesson 1 - Foundation
      • Lesson 2 - Republic
      • Lesson 3 - Hannibal
      • Lesson 4 - Julius Caesar
      • Lesson 5 - Rome
    • Unit 4 - Roman Empire >
      • Lesson 1 - Empire
      • Lesson 2 - Roman Nyon
      • Lesson 3 - Pompeii
      • Lesson 4 - Rise and Fall
      • Lesson 5 - Legacy
    • Unit 5 - The early Middle Ages >
      • Lesson 1 - Middle Ages?
      • Lesson 2 - Christianity
      • Lesson 3 - Monasteries
      • Lesson 4 - Justinian
      • Lesson 5 - Islam
      • Lesson 6 - Vikings
  • Year 11
    • Warfare - A study through time >
      • Lesson 1 - Introduction >
        • Warfare - Timeline activity >
          • Students' Timelines 2020
      • Lesson 2 - Medieval >
        • Case Study - 1066 - Battle of Hastings
      • Lesson 3 - Crusades >
        • Case Study - 1271 - Krak des Chevaliers
      • Lesson 4 - New World >
        • Case Study - 1532 - Battle of Cajamarca
      • Lesson 5 - Religion >
        • Case Study - 1572 - St. Bartholomew's Day Massacre
      • Lesson 6 - Napoleon >
        • Case Study - 1796 - Battle of Lodi
      • Lesson 7 - Industrial >
        • Case Study - 1859 - Battle of Solferino
      • Lesson 8 - World War 1 >
        • Case Study - 1915 - The Battle of Ypres
      • Lesson 9 - 1930s >
        • Case Study - 1937 - Nanjing Massacre
      • Lesson 10 - Vietnam >
        • Case Study - 1968 - Tet Offensive
    • Matu 1 - The American Revolution >
      • Lesson 1 - The Scientific Revolution
      • Lesson 2 - The Enlightenment
      • Lesson 3 - Enlightened Monarchs
      • Lesson 4 - Colonising America
      • Lesson 5 - Thirteen Colonies
      • Lesson 6 - Boston Massacre? >
        • Boston Massacre - The Play
      • Lesson 7 - Short-term causes
      • Lesson 8 - Why Britain lost
      • Lesson 9 - Consequences
      • Lesson 10 - How revolutionary?
    • Matu 2 - The French Revolution >
      • Lesson 1 - Introduction
      • Lesson 2 - Causes SE
      • Lesson 3 - Causes CP
      • Lesson 4 - Short term causes
      • Lesson 5 - The Bastille
      • Lesson 6 - 1789-91
      • Lesson 7 - 1793 Execution
      • Lesson 8 - The Terror
    • Matu 3 - Switzerland and Napoleon >
      • Lesson 1 - Ancien Regime
      • Lesson 2 - 1789
      • Lesson 3 - Napoleon's Rise
      • Lesson 4 - Napoleon in Art
      • Lesson 5 - Napoleon's Reforms
      • Lesson 6 - Switzerland 1798-1815
      • Lesson 7 - Napoleon's Europe
      • Lesson 8 - Napoleon: Hero or villain
  • S1 S2
    • Matu 4 - Industrial Revolution >
      • Lesson 1 - Why was Britain First?
      • Lesson 2 - Economics - Agriculture
      • Lesson 3 - Economics - Industry
      • Lesson 4 - Transport
      • Lesson 5 - Social Impact
      • Lesson 6 - Cultural Impact
      • Lesson 7 - Political Impact
      • Lesson 8 - Switzerland
    • Matu 5 - Nationalism >
      • Lesson 1 - Impact of French Revolution
      • Lesson 2 - Napoleon and Vienna
      • Lesson 3 - 1815-48 - Age of Revolution
      • Lesson 4 - Italian Unification - 1830-48
      • Lesson 5 - Switzerland 1815-48
      • Lesson 6 - Italian Unification - 1848-70
      • Lesson 7 - German Unification - 1848-71
      • Lesson 8 - The German Empire
    • Matu 6 - New Imperialism >
      • Lesson 1 - New Imperialism?
      • Lesson 2 - Africa
      • Lesson 3 - Congo
      • Lesson 4 - China
      • Lesson 5 - Japan
      • Lesson 6 - Legacy
      • Jared Diamond thesis
    • Matu 7 - World War 1 >
      • Lesson 1 - Introduction
      • Lesson 2 - Causes
      • Lesson 3 - 1914
      • Lesson 4 - Expectations
      • Lesson 5 - Reality
      • Lesson 6 - Total War
      • Lesson 7 - Switzerland
      • Lesson 8 - Defeat
      • Lesson 9 - Peace 1919
    • Matu 8 - Russian Revolutions >
      • Lesson 1 - Russia before 1917 >
        • Tim Marshall - Russia
      • Lesson 2 - 1905 Revolution
      • Lesson 3 - February Revolution
      • Lesson 4 - Marxism
      • Lesson 5 - Lenin
      • Lesson 6 - The Bolsheviks
      • Lesson 7 - 1917-18
      • Lesson 8 - Civil War
    • Matu 9 - USA 1919-41 >
      • Lesson 1 - 1920s boom
      • Lesson 2 - Roaring 20s?
      • Lesson 3 - Crash
      • Lesson 4 - 1932 Election
      • Lesson 5 - New Deal
      • Lesson 6 - Judging the New Deal
    • Matu 10 - Totalitarian States >
      • Lesson 1 - Modern Authoritarianism >
        • Is Trump's USA authoritarian?
      • Lesson 2 - Fascism
      • Lesson 3 - Mussolini - Rise to Power
      • Lesson 4 - Mussolini - Consolidation of Power
      • Lesson 5 - Mussolini - Aims and policies
      • Lesson 6 - Research presentations >
        • Hitler - Research presentations
        • Stalin- Research presentations
      • Lesson 7 - Hitler - Germany 1933-45 >
        • Hitler - Rise to Power
        • Hitler - Consolidation of Power
        • Hitler - Aims and policies
      • Lesson 8 - Stalin - USSR 1924-41 >
        • Stalin - Rise to Power
        • Stalin - Consolidation of Power
        • Stalin - Aims and policies
    • Exams and Revision
  • S3
    • Matu 11 - World War II >
      • Lesson 1 - WW1
      • Lesson 2 - LoN
      • Lesson 3 - Hitler
      • Lesson 4 - Appeasement
      • Lesson 5 - 1939-40
      • Lesson 6 - Japan
      • Lesson 7 - Russia
      • Lesson 8 - Total War
      • Lesson 9 - Defeat
      • Lesson 10 - Switzerland
    • Matu 12 - The Cold War >
      • Lesson 1 - Origins
      • Lesson 2 - Causes
      • Lesson 3 - Berlin
      • Lesson 4 - 1950s
      • Lesson 5 - 1960s
      • Lesson 6 - 1970s
      • Lesson 7 - 1980s
    • Matu 13 - Decolonisation and the Third World >
      • Lesson 1 - Factors
      • Lesson 2 - Case studies
      • Lesson 3 - Consequences
    • Matu 14 - Switzerland >
      • Swiss Politics
      • Swiss History
    • Exams and Revision
  • IB History
    • IB History - Paper 1 >
      • IB History - Paper 1 - Content
      • IB History - Paper 1 - Past paper questions >
        • Question 1a
        • Question 1b
        • Question 2
        • Question 3
        • Question 4
      • IB History - Paper 1 - Skills
    • IB History - Paper 2 >
      • IB History - Paper 2 past paper questions
      • IB History - 7. Industrialization >
        • IB History - Past paper questions - Industrialization
        • IB History - First and Second Industrial Revolution
        • IB History - Steven Johnson
        • Activity 1
      • IB History - 8. Independence movements >
        • IB History - Past paper questions - Independence movements
        • IB History - Revision Template - Independence movements >
          • IB History - Independence movements - Theme 1 - Origin and rise
          • IB History - Independence movements - Theme 2 - Methods
      • IB History - 10. Authoritarian States >
        • IB History - Emergence of authoritarian states
        • IB History - Consolidation and maintenance
        • IB History - Aims and policies
        • IB History - Past paper questions - Authoritarian states
        • IB History - Revision Template - Authoritarian states >
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 1)
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 2)
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 3)
      • IB History - 11. Warfare >
        • IB History - Past paper questions - Warfare
      • IB History - 12. Cold War >
        • IB History - Past paper questions - Cold War
        • IB History - Revision essay plans - Cold War >
          • Cold War - 1943-49 - Rivalry, mistrust and accord
          • Cold War - 1947-79 - Rivalry, mistrust and accord
          • Cold War - 1980-91 - Rivalry, mistrust and accord
          • Cold War - Leaders, nations and Cold War crises.
    • IB History - IA - Internal Assessment
  • TOK
    • Critical Thinking >
      • Lesson 1 - Thinking >
        • Lesson 1 - Test
      • Lesson 2 - Language
      • Lesson 3 - Senses
      • Lesson 4 - Reason
      • Lesson 5 - Emotion
      • Assessment >
        • Movie perception test
        • Complete film
        • Student Films 2021
    • Core theme - Knowledge and the knower >
      • Knowledge framework
    • Areas of Knowledge >
      • History >
        • Scope in history
        • Method and perspective in history
        • Ethics in history
      • Human Science >
        • Scope in human science
        • Method and perspectives in human science
        • Ethics in human science
      • Natural Science >
        • Scope in natural science
        • Method and perspectives in natural science
        • Ethics in human science
      • Maths >
        • Scope in maths
        • Method and perspectives in maths
        • Ethics in maths
      • Arts >
        • Scope in the arts
        • Method and perspectives in arts
        • Ethics in the arts
      • Politics >
        • Scope in politics
        • Method and perspectives in politics
        • Ethics in politics
      • Technology >
        • Scope in technology
        • Method and perspectives in politics
        • Ethics in technology
      • Language >
        • Scope in language
        • Method and perspectives in language
        • Ethics in technology
    • Assessment >
      • TOK Exhibition >
        • TOK Exhibition 2023
        • TOK Exhibition 2024
      • Essay
  • About
International School History
  • Home
  • Year 9
    • Unit 1 - Bronze Age Greece >
      • Lesson 1 - Minoa
      • Lesson 2 - Myths
      • Lesson 3 - Atlantis
      • Lesson 4 - The Mycenaeans
      • Lesson 5 - Troy
    • Unit 2 - Classical Greece >
      • Lesson 1 - Archaic Period >
        • End of Unit Test >
          • End of Unit Test - 1
      • Lesson 2 - Olympics
      • Lesson 3 - Athens
      • Lesson 4 - Democracy
      • Lesson 5 - Sparta
      • Lesson 6 - Greek Gods
      • Lesson 7 - Greek Legacy
      • End of Unit Test - 2
    • Unit 3 - Roman Republic >
      • Lesson 1 - Foundation
      • Lesson 2 - Republic
      • Lesson 3 - Hannibal
      • Lesson 4 - Julius Caesar
      • Lesson 5 - Rome
    • Unit 4 - Roman Empire >
      • Lesson 1 - Empire
      • Lesson 2 - Roman Nyon
      • Lesson 3 - Pompeii
      • Lesson 4 - Rise and Fall
      • Lesson 5 - Legacy
    • Unit 5 - The early Middle Ages >
      • Lesson 1 - Middle Ages?
      • Lesson 2 - Christianity
      • Lesson 3 - Monasteries
      • Lesson 4 - Justinian
      • Lesson 5 - Islam
      • Lesson 6 - Vikings
  • Year 11
    • Warfare - A study through time >
      • Lesson 1 - Introduction >
        • Warfare - Timeline activity >
          • Students' Timelines 2020
      • Lesson 2 - Medieval >
        • Case Study - 1066 - Battle of Hastings
      • Lesson 3 - Crusades >
        • Case Study - 1271 - Krak des Chevaliers
      • Lesson 4 - New World >
        • Case Study - 1532 - Battle of Cajamarca
      • Lesson 5 - Religion >
        • Case Study - 1572 - St. Bartholomew's Day Massacre
      • Lesson 6 - Napoleon >
        • Case Study - 1796 - Battle of Lodi
      • Lesson 7 - Industrial >
        • Case Study - 1859 - Battle of Solferino
      • Lesson 8 - World War 1 >
        • Case Study - 1915 - The Battle of Ypres
      • Lesson 9 - 1930s >
        • Case Study - 1937 - Nanjing Massacre
      • Lesson 10 - Vietnam >
        • Case Study - 1968 - Tet Offensive
    • Matu 1 - The American Revolution >
      • Lesson 1 - The Scientific Revolution
      • Lesson 2 - The Enlightenment
      • Lesson 3 - Enlightened Monarchs
      • Lesson 4 - Colonising America
      • Lesson 5 - Thirteen Colonies
      • Lesson 6 - Boston Massacre? >
        • Boston Massacre - The Play
      • Lesson 7 - Short-term causes
      • Lesson 8 - Why Britain lost
      • Lesson 9 - Consequences
      • Lesson 10 - How revolutionary?
    • Matu 2 - The French Revolution >
      • Lesson 1 - Introduction
      • Lesson 2 - Causes SE
      • Lesson 3 - Causes CP
      • Lesson 4 - Short term causes
      • Lesson 5 - The Bastille
      • Lesson 6 - 1789-91
      • Lesson 7 - 1793 Execution
      • Lesson 8 - The Terror
    • Matu 3 - Switzerland and Napoleon >
      • Lesson 1 - Ancien Regime
      • Lesson 2 - 1789
      • Lesson 3 - Napoleon's Rise
      • Lesson 4 - Napoleon in Art
      • Lesson 5 - Napoleon's Reforms
      • Lesson 6 - Switzerland 1798-1815
      • Lesson 7 - Napoleon's Europe
      • Lesson 8 - Napoleon: Hero or villain
  • S1 S2
    • Matu 4 - Industrial Revolution >
      • Lesson 1 - Why was Britain First?
      • Lesson 2 - Economics - Agriculture
      • Lesson 3 - Economics - Industry
      • Lesson 4 - Transport
      • Lesson 5 - Social Impact
      • Lesson 6 - Cultural Impact
      • Lesson 7 - Political Impact
      • Lesson 8 - Switzerland
    • Matu 5 - Nationalism >
      • Lesson 1 - Impact of French Revolution
      • Lesson 2 - Napoleon and Vienna
      • Lesson 3 - 1815-48 - Age of Revolution
      • Lesson 4 - Italian Unification - 1830-48
      • Lesson 5 - Switzerland 1815-48
      • Lesson 6 - Italian Unification - 1848-70
      • Lesson 7 - German Unification - 1848-71
      • Lesson 8 - The German Empire
    • Matu 6 - New Imperialism >
      • Lesson 1 - New Imperialism?
      • Lesson 2 - Africa
      • Lesson 3 - Congo
      • Lesson 4 - China
      • Lesson 5 - Japan
      • Lesson 6 - Legacy
      • Jared Diamond thesis
    • Matu 7 - World War 1 >
      • Lesson 1 - Introduction
      • Lesson 2 - Causes
      • Lesson 3 - 1914
      • Lesson 4 - Expectations
      • Lesson 5 - Reality
      • Lesson 6 - Total War
      • Lesson 7 - Switzerland
      • Lesson 8 - Defeat
      • Lesson 9 - Peace 1919
    • Matu 8 - Russian Revolutions >
      • Lesson 1 - Russia before 1917 >
        • Tim Marshall - Russia
      • Lesson 2 - 1905 Revolution
      • Lesson 3 - February Revolution
      • Lesson 4 - Marxism
      • Lesson 5 - Lenin
      • Lesson 6 - The Bolsheviks
      • Lesson 7 - 1917-18
      • Lesson 8 - Civil War
    • Matu 9 - USA 1919-41 >
      • Lesson 1 - 1920s boom
      • Lesson 2 - Roaring 20s?
      • Lesson 3 - Crash
      • Lesson 4 - 1932 Election
      • Lesson 5 - New Deal
      • Lesson 6 - Judging the New Deal
    • Matu 10 - Totalitarian States >
      • Lesson 1 - Modern Authoritarianism >
        • Is Trump's USA authoritarian?
      • Lesson 2 - Fascism
      • Lesson 3 - Mussolini - Rise to Power
      • Lesson 4 - Mussolini - Consolidation of Power
      • Lesson 5 - Mussolini - Aims and policies
      • Lesson 6 - Research presentations >
        • Hitler - Research presentations
        • Stalin- Research presentations
      • Lesson 7 - Hitler - Germany 1933-45 >
        • Hitler - Rise to Power
        • Hitler - Consolidation of Power
        • Hitler - Aims and policies
      • Lesson 8 - Stalin - USSR 1924-41 >
        • Stalin - Rise to Power
        • Stalin - Consolidation of Power
        • Stalin - Aims and policies
    • Exams and Revision
  • S3
    • Matu 11 - World War II >
      • Lesson 1 - WW1
      • Lesson 2 - LoN
      • Lesson 3 - Hitler
      • Lesson 4 - Appeasement
      • Lesson 5 - 1939-40
      • Lesson 6 - Japan
      • Lesson 7 - Russia
      • Lesson 8 - Total War
      • Lesson 9 - Defeat
      • Lesson 10 - Switzerland
    • Matu 12 - The Cold War >
      • Lesson 1 - Origins
      • Lesson 2 - Causes
      • Lesson 3 - Berlin
      • Lesson 4 - 1950s
      • Lesson 5 - 1960s
      • Lesson 6 - 1970s
      • Lesson 7 - 1980s
    • Matu 13 - Decolonisation and the Third World >
      • Lesson 1 - Factors
      • Lesson 2 - Case studies
      • Lesson 3 - Consequences
    • Matu 14 - Switzerland >
      • Swiss Politics
      • Swiss History
    • Exams and Revision
  • IB History
    • IB History - Paper 1 >
      • IB History - Paper 1 - Content
      • IB History - Paper 1 - Past paper questions >
        • Question 1a
        • Question 1b
        • Question 2
        • Question 3
        • Question 4
      • IB History - Paper 1 - Skills
    • IB History - Paper 2 >
      • IB History - Paper 2 past paper questions
      • IB History - 7. Industrialization >
        • IB History - Past paper questions - Industrialization
        • IB History - First and Second Industrial Revolution
        • IB History - Steven Johnson
        • Activity 1
      • IB History - 8. Independence movements >
        • IB History - Past paper questions - Independence movements
        • IB History - Revision Template - Independence movements >
          • IB History - Independence movements - Theme 1 - Origin and rise
          • IB History - Independence movements - Theme 2 - Methods
      • IB History - 10. Authoritarian States >
        • IB History - Emergence of authoritarian states
        • IB History - Consolidation and maintenance
        • IB History - Aims and policies
        • IB History - Past paper questions - Authoritarian states
        • IB History - Revision Template - Authoritarian states >
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 1)
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 2)
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 3)
      • IB History - 11. Warfare >
        • IB History - Past paper questions - Warfare
      • IB History - 12. Cold War >
        • IB History - Past paper questions - Cold War
        • IB History - Revision essay plans - Cold War >
          • Cold War - 1943-49 - Rivalry, mistrust and accord
          • Cold War - 1947-79 - Rivalry, mistrust and accord
          • Cold War - 1980-91 - Rivalry, mistrust and accord
          • Cold War - Leaders, nations and Cold War crises.
    • IB History - IA - Internal Assessment
  • TOK
    • Critical Thinking >
      • Lesson 1 - Thinking >
        • Lesson 1 - Test
      • Lesson 2 - Language
      • Lesson 3 - Senses
      • Lesson 4 - Reason
      • Lesson 5 - Emotion
      • Assessment >
        • Movie perception test
        • Complete film
        • Student Films 2021
    • Core theme - Knowledge and the knower >
      • Knowledge framework
    • Areas of Knowledge >
      • History >
        • Scope in history
        • Method and perspective in history
        • Ethics in history
      • Human Science >
        • Scope in human science
        • Method and perspectives in human science
        • Ethics in human science
      • Natural Science >
        • Scope in natural science
        • Method and perspectives in natural science
        • Ethics in human science
      • Maths >
        • Scope in maths
        • Method and perspectives in maths
        • Ethics in maths
      • Arts >
        • Scope in the arts
        • Method and perspectives in arts
        • Ethics in the arts
      • Politics >
        • Scope in politics
        • Method and perspectives in politics
        • Ethics in politics
      • Technology >
        • Scope in technology
        • Method and perspectives in politics
        • Ethics in technology
      • Language >
        • Scope in language
        • Method and perspectives in language
        • Ethics in technology
    • Assessment >
      • TOK Exhibition >
        • TOK Exhibition 2023
        • TOK Exhibition 2024
      • Essay
  • About
Critical

THINKING

Lesson 1 - Thinking fast and slow
Le cœur a ses raisons que la raison ne connaît - The heart has its reasons which reason knows not Blaise Pascal 
This lesson is dedicated to how we think and how this is related to what it means to know. Much of what we will do in this lesson will be revisited in later lessons, so although important, it is not too serious if you don't understand it first time around. 

The basic idea is that your brain has two minds, or systems of thought: System 1 and System 2
Picture
System 1 is associated with fast thinking. It is automatic, always on and works with very little effort. Think back to the activity you did at the start of the lesson, the sort of knowledge described was mainly System 1. They included things that you learnt through repetitive practice, through social experience or from instinct are all typical of System 1.  In evolutionary terms this is the oldest part of the brain, the part of the brain that has most in common with other animal species. It is System 1 that lets you know that 2+2 = 4, that Paris is the capital of France and the missing word in this phrase 'fish and _____'.  You know the answers instantly and with no effort. System 1 is the powerhouse of your brain, it controls most of what you think and do but because you don't notice it, System 1 rarely gets any of the credit. 
Picture
System 2 is associated with deliberate and slow thinking.  When we think of who we are or what it means to be a rational decision making human, we are referring to System 2.  When a teacher says to you 'pay attention' or tells you to 'concentrate' she is asking you to deliberately engage System 2.  This is not easy, because compared to System 1, System 2 is fairly weak. You have a limited short term memory and a limited ability to hold complex ideas in your head at the same time. That is why you can feel exhausted when you come out of particularly taxing maths lesson and why you might be struggling to understand these new psychological concepts written in your second language. One of the problems of System 2 is that when it does get overloaded it can allow System 1 to take over.  As we will see, this can sometimes lead to trouble. 
Picture
Ten important qualities of the two systems
System 1
System 2
Unconscious reasoning (Intuition, Creativity, Subconscious)
Conscious reasoning (Deliberative reasoning)
Mostly involuntary
Mostly voluntary
Mostly linked to emotions ("gut feeling")
Mostly detached from emotions
Low Effort
High Effort
​Rapid
Slow
Large Capacity
Small Capacity
Insightful (Aha moments), Radical, Novel​
Methodical, Incremental, Repetitive
Intuitive, Creative
Logical, Rational
Daydreaming, Mind wandering
Working, Paying attention
​Evolutionarily old
Evolutionarily recent
In the lesson we'll be looking at what happens when we deliberately cause the two systems to clash with each other.  I'll be adding lots of additional examples and videos after all the classes have been taught. If you are interested in knowing more, check back in a couple of weeks or so. In the meantime, have a go at the following activity produced by the psychologist Daniel Kahneman, the man who wrote the book 'Thinking, Fast and Slow'.  The image on the right explains why adolescents have greater difficulty controlling their emotions and impulses (and also why they need more sleep!). It's not your fault, your brain hasn't caught up to the rest of your body yet. 
Picture
Picture
Further reading and resources...
Daniel Kahneman

The long video below is a lecture by Daniel Kahneman that he gave at the time of the release of his best selling book 'Thinking, Fast and Slow'. You will see him use many of the ideas I borrowed for my lesson with you.  The shorter video tries to summarise the book and it does quite a good job. It includes a lot of key ideas that our short lesson didn't have time for.
​
The Guardian Newspaper provided a useful review of Daniel Kahneman's book when it came out, it summarises the main ideas.
This New York Times account is slightly more critical but still very positive.

Christopher Chabris and Daniel Simons 

These are the psychologists/neuroscientists responsible for the invisible gorilla experiment http://www.theinvisiblegorilla.com. The website contains a number of interesting videos that demonstrate other experiments they have conducted.

National Geographic Brain Games on attention

The Stroop effect

In psychology, the Stroop effect is the delay in reaction time between congruent and incongruent stimuli. A basic task that demonstrates this effect occurs when there is a mismatch between the name of a colour (e.g., "blue", "green", or "red") and the colour it is printed on (i.e., the word "red" printed in blue ink instead of red ink). When asked to name the colour of the word it takes longer and is more prone to errors when the colour of the ink does not match the name of the colour. The effect is named after John Ridley Stroop, who first published the effect in English in 1935.  You can test yourself here: 
www.psytoolkit.org/lessons/stroop.html
Picture

The Marshmallow Test and Executive Functions
Executive functions are a set of skills that include organisation, attention, and planning. They are associated with what Daniel Kahneman calls system 2.

​Executive functioning skills develop over time and peak when we are in our mid-20s. The Marshmallow Test evaluates a child’s ability to delay gratification and measures the three main aspects of executive function (working memory, flexible thinking, and inhibitory control).

​The test is pretty simple. Children are given a choice between a smaller reward right away or a larger reward later. In this video, we watch as  preschoolers are given the Marshmallow Test.
Other interesting experiments in fast and slow thinking.

The little sister of internationalschoolhistory.net - Richard Jones-Nerzic- Nyon, Switzerland 2025 
The views expressed on this website are those of the author and not necessarily endorsed by the author's employer. 
  • Home
  • Year 9
    • Unit 1 - Bronze Age Greece >
      • Lesson 1 - Minoa
      • Lesson 2 - Myths
      • Lesson 3 - Atlantis
      • Lesson 4 - The Mycenaeans
      • Lesson 5 - Troy
    • Unit 2 - Classical Greece >
      • Lesson 1 - Archaic Period >
        • End of Unit Test >
          • End of Unit Test - 1
      • Lesson 2 - Olympics
      • Lesson 3 - Athens
      • Lesson 4 - Democracy
      • Lesson 5 - Sparta
      • Lesson 6 - Greek Gods
      • Lesson 7 - Greek Legacy
      • End of Unit Test - 2
    • Unit 3 - Roman Republic >
      • Lesson 1 - Foundation
      • Lesson 2 - Republic
      • Lesson 3 - Hannibal
      • Lesson 4 - Julius Caesar
      • Lesson 5 - Rome
    • Unit 4 - Roman Empire >
      • Lesson 1 - Empire
      • Lesson 2 - Roman Nyon
      • Lesson 3 - Pompeii
      • Lesson 4 - Rise and Fall
      • Lesson 5 - Legacy
    • Unit 5 - The early Middle Ages >
      • Lesson 1 - Middle Ages?
      • Lesson 2 - Christianity
      • Lesson 3 - Monasteries
      • Lesson 4 - Justinian
      • Lesson 5 - Islam
      • Lesson 6 - Vikings
  • Year 11
    • Warfare - A study through time >
      • Lesson 1 - Introduction >
        • Warfare - Timeline activity >
          • Students' Timelines 2020
      • Lesson 2 - Medieval >
        • Case Study - 1066 - Battle of Hastings
      • Lesson 3 - Crusades >
        • Case Study - 1271 - Krak des Chevaliers
      • Lesson 4 - New World >
        • Case Study - 1532 - Battle of Cajamarca
      • Lesson 5 - Religion >
        • Case Study - 1572 - St. Bartholomew's Day Massacre
      • Lesson 6 - Napoleon >
        • Case Study - 1796 - Battle of Lodi
      • Lesson 7 - Industrial >
        • Case Study - 1859 - Battle of Solferino
      • Lesson 8 - World War 1 >
        • Case Study - 1915 - The Battle of Ypres
      • Lesson 9 - 1930s >
        • Case Study - 1937 - Nanjing Massacre
      • Lesson 10 - Vietnam >
        • Case Study - 1968 - Tet Offensive
    • Matu 1 - The American Revolution >
      • Lesson 1 - The Scientific Revolution
      • Lesson 2 - The Enlightenment
      • Lesson 3 - Enlightened Monarchs
      • Lesson 4 - Colonising America
      • Lesson 5 - Thirteen Colonies
      • Lesson 6 - Boston Massacre? >
        • Boston Massacre - The Play
      • Lesson 7 - Short-term causes
      • Lesson 8 - Why Britain lost
      • Lesson 9 - Consequences
      • Lesson 10 - How revolutionary?
    • Matu 2 - The French Revolution >
      • Lesson 1 - Introduction
      • Lesson 2 - Causes SE
      • Lesson 3 - Causes CP
      • Lesson 4 - Short term causes
      • Lesson 5 - The Bastille
      • Lesson 6 - 1789-91
      • Lesson 7 - 1793 Execution
      • Lesson 8 - The Terror
    • Matu 3 - Switzerland and Napoleon >
      • Lesson 1 - Ancien Regime
      • Lesson 2 - 1789
      • Lesson 3 - Napoleon's Rise
      • Lesson 4 - Napoleon in Art
      • Lesson 5 - Napoleon's Reforms
      • Lesson 6 - Switzerland 1798-1815
      • Lesson 7 - Napoleon's Europe
      • Lesson 8 - Napoleon: Hero or villain
  • S1 S2
    • Matu 4 - Industrial Revolution >
      • Lesson 1 - Why was Britain First?
      • Lesson 2 - Economics - Agriculture
      • Lesson 3 - Economics - Industry
      • Lesson 4 - Transport
      • Lesson 5 - Social Impact
      • Lesson 6 - Cultural Impact
      • Lesson 7 - Political Impact
      • Lesson 8 - Switzerland
    • Matu 5 - Nationalism >
      • Lesson 1 - Impact of French Revolution
      • Lesson 2 - Napoleon and Vienna
      • Lesson 3 - 1815-48 - Age of Revolution
      • Lesson 4 - Italian Unification - 1830-48
      • Lesson 5 - Switzerland 1815-48
      • Lesson 6 - Italian Unification - 1848-70
      • Lesson 7 - German Unification - 1848-71
      • Lesson 8 - The German Empire
    • Matu 6 - New Imperialism >
      • Lesson 1 - New Imperialism?
      • Lesson 2 - Africa
      • Lesson 3 - Congo
      • Lesson 4 - China
      • Lesson 5 - Japan
      • Lesson 6 - Legacy
      • Jared Diamond thesis
    • Matu 7 - World War 1 >
      • Lesson 1 - Introduction
      • Lesson 2 - Causes
      • Lesson 3 - 1914
      • Lesson 4 - Expectations
      • Lesson 5 - Reality
      • Lesson 6 - Total War
      • Lesson 7 - Switzerland
      • Lesson 8 - Defeat
      • Lesson 9 - Peace 1919
    • Matu 8 - Russian Revolutions >
      • Lesson 1 - Russia before 1917 >
        • Tim Marshall - Russia
      • Lesson 2 - 1905 Revolution
      • Lesson 3 - February Revolution
      • Lesson 4 - Marxism
      • Lesson 5 - Lenin
      • Lesson 6 - The Bolsheviks
      • Lesson 7 - 1917-18
      • Lesson 8 - Civil War
    • Matu 9 - USA 1919-41 >
      • Lesson 1 - 1920s boom
      • Lesson 2 - Roaring 20s?
      • Lesson 3 - Crash
      • Lesson 4 - 1932 Election
      • Lesson 5 - New Deal
      • Lesson 6 - Judging the New Deal
    • Matu 10 - Totalitarian States >
      • Lesson 1 - Modern Authoritarianism >
        • Is Trump's USA authoritarian?
      • Lesson 2 - Fascism
      • Lesson 3 - Mussolini - Rise to Power
      • Lesson 4 - Mussolini - Consolidation of Power
      • Lesson 5 - Mussolini - Aims and policies
      • Lesson 6 - Research presentations >
        • Hitler - Research presentations
        • Stalin- Research presentations
      • Lesson 7 - Hitler - Germany 1933-45 >
        • Hitler - Rise to Power
        • Hitler - Consolidation of Power
        • Hitler - Aims and policies
      • Lesson 8 - Stalin - USSR 1924-41 >
        • Stalin - Rise to Power
        • Stalin - Consolidation of Power
        • Stalin - Aims and policies
    • Exams and Revision
  • S3
    • Matu 11 - World War II >
      • Lesson 1 - WW1
      • Lesson 2 - LoN
      • Lesson 3 - Hitler
      • Lesson 4 - Appeasement
      • Lesson 5 - 1939-40
      • Lesson 6 - Japan
      • Lesson 7 - Russia
      • Lesson 8 - Total War
      • Lesson 9 - Defeat
      • Lesson 10 - Switzerland
    • Matu 12 - The Cold War >
      • Lesson 1 - Origins
      • Lesson 2 - Causes
      • Lesson 3 - Berlin
      • Lesson 4 - 1950s
      • Lesson 5 - 1960s
      • Lesson 6 - 1970s
      • Lesson 7 - 1980s
    • Matu 13 - Decolonisation and the Third World >
      • Lesson 1 - Factors
      • Lesson 2 - Case studies
      • Lesson 3 - Consequences
    • Matu 14 - Switzerland >
      • Swiss Politics
      • Swiss History
    • Exams and Revision
  • IB History
    • IB History - Paper 1 >
      • IB History - Paper 1 - Content
      • IB History - Paper 1 - Past paper questions >
        • Question 1a
        • Question 1b
        • Question 2
        • Question 3
        • Question 4
      • IB History - Paper 1 - Skills
    • IB History - Paper 2 >
      • IB History - Paper 2 past paper questions
      • IB History - 7. Industrialization >
        • IB History - Past paper questions - Industrialization
        • IB History - First and Second Industrial Revolution
        • IB History - Steven Johnson
        • Activity 1
      • IB History - 8. Independence movements >
        • IB History - Past paper questions - Independence movements
        • IB History - Revision Template - Independence movements >
          • IB History - Independence movements - Theme 1 - Origin and rise
          • IB History - Independence movements - Theme 2 - Methods
      • IB History - 10. Authoritarian States >
        • IB History - Emergence of authoritarian states
        • IB History - Consolidation and maintenance
        • IB History - Aims and policies
        • IB History - Past paper questions - Authoritarian states
        • IB History - Revision Template - Authoritarian states >
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 1)
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 2)
          • Hitler - Germany and Castro - Cuba - A comparative analysis (Part 3)
      • IB History - 11. Warfare >
        • IB History - Past paper questions - Warfare
      • IB History - 12. Cold War >
        • IB History - Past paper questions - Cold War
        • IB History - Revision essay plans - Cold War >
          • Cold War - 1943-49 - Rivalry, mistrust and accord
          • Cold War - 1947-79 - Rivalry, mistrust and accord
          • Cold War - 1980-91 - Rivalry, mistrust and accord
          • Cold War - Leaders, nations and Cold War crises.
    • IB History - IA - Internal Assessment
  • TOK
    • Critical Thinking >
      • Lesson 1 - Thinking >
        • Lesson 1 - Test
      • Lesson 2 - Language
      • Lesson 3 - Senses
      • Lesson 4 - Reason
      • Lesson 5 - Emotion
      • Assessment >
        • Movie perception test
        • Complete film
        • Student Films 2021
    • Core theme - Knowledge and the knower >
      • Knowledge framework
    • Areas of Knowledge >
      • History >
        • Scope in history
        • Method and perspective in history
        • Ethics in history
      • Human Science >
        • Scope in human science
        • Method and perspectives in human science
        • Ethics in human science
      • Natural Science >
        • Scope in natural science
        • Method and perspectives in natural science
        • Ethics in human science
      • Maths >
        • Scope in maths
        • Method and perspectives in maths
        • Ethics in maths
      • Arts >
        • Scope in the arts
        • Method and perspectives in arts
        • Ethics in the arts
      • Politics >
        • Scope in politics
        • Method and perspectives in politics
        • Ethics in politics
      • Technology >
        • Scope in technology
        • Method and perspectives in politics
        • Ethics in technology
      • Language >
        • Scope in language
        • Method and perspectives in language
        • Ethics in technology
    • Assessment >
      • TOK Exhibition >
        • TOK Exhibition 2023
        • TOK Exhibition 2024
      • Essay
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