Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Encouraging Critical
  Thinking Online

        Unit 1
  Checking Facts and
  Gathering Opinions
In which year was the
     philosopher Plato born?
• Find three websites that provide an
  answer
• Fill in the boxes on t...
In which year was the
     philosopher Plato born?
• Many sources give a date around
  428 or 427 BCE
• See, for example, ...
Extracts from The Philosopher’s Lighthouse
                  and the EGS website




http://library.thinkquest.org/18775/p...
Extracts from The Philosopher’s Lighthouse
                  and the EGS website




http://library.thinkquest.org/18775/p...
In which year was the
      philosopher Plato born?
• But it’s not hard to find sites that
  give dates ranging from at le...
Extracts from Bristol University course
        description and APS newsletter




http://www.bristol.ac.uk/philosophy/cur...
Extracts from Bristol University course
        description and APS newsletter




http://www.bristol.ac.uk/philosophy/cur...
In which year was the
      philosopher Plato born?
• Many sites will indicate that there’s
  some uncertainty
  – By prec...
In which year was the
      philosopher Plato born?
• However, many sites just give an
 unqualified date
  – St Andrews Un...
Extracts from St Andrews University
           website and UsefulTrivia.com




http://www-groups.dcs.st-and.ac.uk/~histor...
Extracts from St Andrews University
           website and UsefulTrivia.com




http://www-groups.dcs.st-and.ac.uk/~histor...
In which year was the
      philosopher Plato born?
• Some sites even contradict
 themselves
  – Bookrags.com’s extract fr...
Bookrags.com: Extract from
      Encyclopedia of World Biography




http://www.bookrags.com/biography/plato/   Retrieved ...
Bookrags.com: Extract from
      Encyclopedia of World Biography




http://www.bookrags.com/biography/plato/   Retrieved ...
Wikipedia article on Plato from 2008




http://en.wikipedia.org/wiki/Plato   Retrieved 4 June 2008
Wikipedia article on Plato from 2008




http://en.wikipedia.org/wiki/Plato   Retrieved 4 June 2008
Further questions to consider

• What reasons are given for
  accepting one date rather than
  another?
• In your view, wh...
Summary - key things to note

• The precise answer to a question is not
  always known
  – But sources don’t always acknow...
Why might we find conflicting
    answers to a question?
• There may be real uncertainty
  about the answer
• Authorities ...
Why might we find conflicting
    answers to a question?
• Some sources may be more up to
  date than others
• Answers may...
Questions to ask when
        assessing sources
• Who is the author?
  – An individual or an institution?
  – What are the...
Questions to ask when
        assessing sources
• Are there reasons to doubt the
 reliability of this source?
  – Does it ...
Questions to ask when
        assessing sources
• Is the information provided
 confirmed by other sources?
  – Are referen...
Remember the three Ws

• WHO wrote this site?
  – Is the author a trustworthy source?
• WHEN was it written?
  – Is it up ...
This slideshow is part of
Encouraging Critical Thinking Online,
   a set of free teaching resources
         designed to d...
Upcoming SlideShare
Loading in …5
×

Critical Thinking Unit 1 Question A2 Plato Slide Share

1,089 views

Published on

Part of a set of free teaching resources called "Encouraging Critical Thinking Online" by Meriel Patrick of Oxford University, written for the Intute Virtual Training Suite <http: />

Published in: Education, Technology
  • Be the first to comment

  • Be the first to like this

Critical Thinking Unit 1 Question A2 Plato Slide Share

  1. 1. Encouraging Critical Thinking Online Unit 1 Checking Facts and Gathering Opinions
  2. 2. In which year was the philosopher Plato born? • Find three websites that provide an answer • Fill in the boxes on the worksheet for each of them • Comment on any notable features of the sites or answers you discover
  3. 3. In which year was the philosopher Plato born? • Many sources give a date around 428 or 427 BCE • See, for example, the biographies of Plato from – The Philosopher’s Lighthouse – The European Graduate School
  4. 4. Extracts from The Philosopher’s Lighthouse and the EGS website http://library.thinkquest.org/18775/plato/biop.htm and http://www.egs.edu/resources/plato.html Retrieved 6 August
  5. 5. Extracts from The Philosopher’s Lighthouse and the EGS website http://library.thinkquest.org/18775/plato/biop.htm and http://www.egs.edu/resources/plato.html Retrieved 6 August
  6. 6. In which year was the philosopher Plato born? • But it’s not hard to find sites that give dates ranging from at least 430 to 423 BCE – Bristol University course description – Australian Psychological Society newsletter
  7. 7. Extracts from Bristol University course description and APS newsletter http://www.bristol.ac.uk/philosophy/current/undergrad/pastunits/units0506/plato.html and http://www.groups.psychology.org.au/Assets/Files/paig_newsletter_1999.pdf Retrieved 6 August 2008
  8. 8. Extracts from Bristol University course description and APS newsletter http://www.bristol.ac.uk/philosophy/current/undergrad/pastunits/units0506/plato.html and http://www.groups.psychology.org.au/Assets/Files/paig_newsletter_1999.pdf Retrieved 6 August 2008
  9. 9. In which year was the philosopher Plato born? • Many sites will indicate that there’s some uncertainty – By preceding the date with ‘around’, ‘ca.’, ‘circa’ or similar – By giving a range of dates – e.g. 428/7 BCE
  10. 10. In which year was the philosopher Plato born? • However, many sites just give an unqualified date – St Andrews University Plato summary – UsefulTrivia.com even gives a month • Surprisingly few sites indicate the full extent of the uncertainty
  11. 11. Extracts from St Andrews University website and UsefulTrivia.com http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Plato.html and http://www.usefultrivia.com/biographies/plato_001.html Retrieved 6 August 2008
  12. 12. Extracts from St Andrews University website and UsefulTrivia.com http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Plato.html and http://www.usefultrivia.com/biographies/plato_001.html Retrieved 6 August 2008
  13. 13. In which year was the philosopher Plato born? • Some sites even contradict themselves – Bookrags.com’s extract from the Encyclopedia of World Biography – A previous version of the Wikipedia article on Plato, online for at least several months in 2008
  14. 14. Bookrags.com: Extract from Encyclopedia of World Biography http://www.bookrags.com/biography/plato/ Retrieved 4 June 2008
  15. 15. Bookrags.com: Extract from Encyclopedia of World Biography http://www.bookrags.com/biography/plato/ Retrieved 4 June 2008
  16. 16. Wikipedia article on Plato from 2008 http://en.wikipedia.org/wiki/Plato Retrieved 4 June 2008
  17. 17. Wikipedia article on Plato from 2008 http://en.wikipedia.org/wiki/Plato Retrieved 4 June 2008
  18. 18. Further questions to consider • What reasons are given for accepting one date rather than another? • In your view, which date has the best claim to be the correct answer? Why is this?
  19. 19. Summary - key things to note • The precise answer to a question is not always known – But sources don’t always acknowledge that this is the case – Important qualifications can get omitted • Caution and cross-checking of facts are vital
  20. 20. Why might we find conflicting answers to a question? • There may be real uncertainty about the answer • Authorities may disagree • There may be multiple ways of interpreting a question
  21. 21. Why might we find conflicting answers to a question? • Some sources may be more up to date than others • Answers may vary in precision • Some sources may simply be wrong
  22. 22. Questions to ask when assessing sources • Who is the author? – An individual or an institution? – What are the author’s credentials? • Is this a scholarly resource, or a more informal one? • How up to date is this source?
  23. 23. Questions to ask when assessing sources • Are there reasons to doubt the reliability of this source? – Does it include information I know to be false? – Does it contradict itself or use poor reasoning? – Is it biased towards a particular view?
  24. 24. Questions to ask when assessing sources • Is the information provided confirmed by other sources? – Are references provided? – Do other websites agree? (A major advantage of the Web is that many sources can be compared quickly and easily.)
  25. 25. Remember the three Ws • WHO wrote this site? – Is the author a trustworthy source? • WHEN was it written? – Is it up to date? • WHY was it written? – Does the author have an axe to grind?
  26. 26. This slideshow is part of Encouraging Critical Thinking Online, a set of free teaching resources designed to develop students’ analytic abilities, using the Web as source material. For the full set, please visit Intute Training: http://www.intute.ac.uk/training/

×