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17. Other temperature conversion examples

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Last updated 26 October 2012 15:30 by NZTecAdmin

Some examples from the temperature conversion derivation:

  • Excellent context for developing proportional thinking - e.g.
    - 180oF for every 100oC means that there are 18 for every 10, 1.8 for every 1, etc.
  • Opportunity for discussing reading scales in general
    - here we have two different scales measuring the same thing, so the units (and hence the gradations on the measuring tools) have different meanings
  • Opportunities for exploring strategies for addition, subtraction, multiplication and division – e.g.
    - How did you work out the difference between 70 and 32?
    - Can we work out 1.8 x 25 without a calculator?
    - What should the answer be close to?
    - If you’re dividing 38 by 1.8 what two numbers must your answer be between?
  • Opportunities for increasing logical thinking for problem-solving.
    - nearly all learners will recognise that you need to add 32 to the Fahrenheit calculation because the starting point for the temperature differential calculated doesn’t start at 0.
  • Modelling using a visual tool to solve problems. The parallel scale visual is very easy to replicate and will stick with learners much longer than a memorised (usually just long enough for the assessment!) formula.


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