Tok natural science introduction

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  • Tok natural science introduction

    1. 1. ToK: Natural Science
    2. 2. What is science and what isn’t science?
    3. 3. What is science and what isn’t science? • Boiling an egg • Predicting the weather • Mapping a mountain • Drilling for oil • Choosing a new camera • Eating a salad • Watering a potted plant
    4. 4. The Sciences
    5. 5. The Sciences• Biology• Chemistry• Physics• Environmental Systems (?)• Design Tech (?)
    6. 6. The Sciences • Geology (?)• Biology • Computer Science (?)• Chemistry • Psychology (?)• Physics • Geography (?)• Environmental Systems (?) • Mathematics (?)• Design Tech (?) • History (?)
    7. 7. A body of knowledge?
    8. 8. A body of knowledge? Or… a way of thinking?
    9. 9. Does it matter?
    10. 10. Does it matter?• Science works, doesn’t it?
    11. 11. Does it matter?• Science works, doesn’t it? a t is m ra g m P
    12. 12. Karl Popper turns science upside down
    13. 13. Karl Popper turns science upside down Falsification
    14. 14. Karl Popper turns science upside down Falsification “A theory which is not refutable by any conceivable event is nonscientific” “Every genuine test of a theory is an attempt to falsify it”
    15. 15. Karl Popper turns science upside down Falsification • Here is my hypothesis…… • Try to shoot it down!
    16. 16. Karl Popper turns science upside down Falsification If it can’t be falsified, it is not science
    17. 17. Thomas Kuhn’s scientific revolutions
    18. 18. Thomas Kuhn’s scientific revolutions Paradigm shifts
    19. 19. Thomas Kuhn’s scientific revolutions Paradigm shiftsparadigmnoun1 technical a typical example or pattern ofsomething; a model : there is a new paradigmfor public art in this country.• a worldview underlying the theories andmethodology of a particular scientificsubject : the discovery of universal gravitationbecame the paradigm of
    20. 20. Thomas Kuhn’s scientific revolutions Paradigm shiftsParadigms are “universallyrecognized scientificachievements that for atime provide modelproblems and solutions to acommunity ofpractitioners.”
    21. 21. Thomas Kuhn’s scientific revolutions Paradigm shiftsParadigms are “universallyrecognized scientificachievements that for atime provide modelproblems and solutions to acommunity ofpractitioners.”
    22. 22. Thomas Kuhn’s scientific revolutions Paradigm shifts • Science progresses by leaps, when crisis point is reached in the current paradigm
    23. 23. Is IB science real science?What are the skills you are expected to show?
    24. 24. Is IB science real science? • Planning (a) Focusing the test • Planning (b) Methodology • Data Collection • Data Processing and Presentation • Conclusion and Evaluation • Manipulative skills • Personal skills (a) Teamwork • Personal skills (b) Motivation and ethics
    25. 25. Words to describe science? Predictive LogicalBeautiful Progressive Cultural Creative

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