Pages

Wednesday, September 24, 2014

Week 2

PATTERNS in Math
Pascal's triangle


Math for KITCHEN TILES




      fractions and percents video






  •   

  • ____________________________________________________________________ 

     

    video

      

    theory vs  hypothesis

    • hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena.
    • In science, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven hypotheses. 
    • A theory is always backed by evidence; a hypothesis is only a suggested possible outcome, and is testable and falsifiable.

    Common Misconception

    People often tend to say "theory" when what they're actually talking about is a hypothesis. For instance, "Migraines are caused by drinking coffee after 2 p.m. - well, it's just a theory, not a rule."
    This is actually a logically reasoned proposal based on an observation - say 2 instances of drinking coffee after 2 p.m. caused a migraine - but even if this were true, the migraine could have actually been caused by some other factors.
    Because this observation is merely a reasoned possibility, it is testable and can be falsified - which makes it a hypothesis, not a theory.