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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.