1. ToK Information / Facts Opinion Belief Knowledge Truth Certainty Knowledge Claims & Knowledge Issues

2. ToK “Opinion has caused more trouble on this little earth than plagues or earthquakes” Voltaire “There are two ways to slide easily through life: to believe everything or to doubt everything; both ways save us from thinking.” Alfred Korzybski “No amount of experimentation can ever prove me right; a single experiment can prove me wrong.” Einstein “Our thoughts of today create our life of tomorrow. As we think, so we are.” Buddha

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6. “If you don't read the newspaper, you are uninformed; if you do read the newspaper, you are misinformed.” Mark Twain

7. ToK Reasons we use to support knowledge claims…. Faith Memory Authority Intuition Revelation Sense perception Logic Self-awareness Common knowledge Instinct Value judgement

8. ToK Knowledge claims can be explicit: 1 + 1 = 2 There are nine planets in our solar system The sky is blue Murder is wrong George Bush won the 2000 US Pres. Election etc …. Possible knowledge issues arising from these?

9. ToK What are some of the possible knowledge claims and knowledge issues arising from this? Knowledge claims can be implicit…

10. ToK What are some of the possible knowledge claims and knowledge issues arising from this?

11. ToK What are some possible knowledge claims and knowledge issues arising from this? “This dewdrop world It may be a dewdrop, And yet … and yet …”

12. ToK This term: Practical Ethics History Mathematics Faith Truth Presentations Essay