Friday 23 April 2010

Reason, Logical fallacies

Key words to remember:

Assumptions- making personal judgements containing guesses and biases, can be accurate but lead to errors being made

Fallacy - a mis calculation in thinking, an error in the making..

The incident in the store exercise we looked at was demonstrating that when it comes to recalling incidents, with our memories we tend to tell a story. This is problematic in Law courts and for us in TOK it highlights one issue with Reason as a source of knowing. Different storytellers see different things in the same incident, so who to believe? This is the narrative fallacy. This is a problem in History/ historical record.

The list of argument or inductive fallacies is lomg, I like this clip here. It aims to demonstrae some key fallacy terms using the debate as to whether God exists. Always a good TOK topic!



Can you give your own examples of Straw man, Red herring and circular reasoning? Slippery slope or ad hominem arguments? Any other?


As we looked at sample essays this week you should attempt to craft the opening sentence for one of the TOK essays, then build up the first paragraph. Plan the rest. This is the process we will follow so get on with this when you havve the confidence to begin. We are only two terms in but I believe a number of you can attempt this now.

3 comments:

  1. all this reminds me of one of Oasis's albums "don't believe the truth" i thik this is a good phrase moto or whatever for fallacies...

    lately i've been told off by my host father (long story) but how does he know i am the same as EVERY student they had?

    host parents commit lots of fallacies with studens
    actually not only host parents but most adults commit the same mistake of generalization... what do you think?

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  2. logical fallacies.. i think... how do we know that colour blind people... are the one's who see the true colours and that we are actually the one's who are colour blind? as well as people who write with left hand...

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  3. in "island of the colour blind" by Oliver Sachs he discovers an island where over 10% of the population are colour blind. The culture reflects how things are seen differently. For example most textiles show higher complexity in print design due to the monochrome vision of the weavers. Regarding fallacies - yes, we all old and young make inductive fallacies!

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