Lesson 3 Number lines galore
Reasoning |
Resources: |
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Worksheet 3 photocopied on to card and cut into strips C and F |
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Application of concepts explored in previous episodes. Using a complex scale: 10 for each 18, and with a different starting value. |
Give out the F and C strips from Worksheet 3, for the F (Fahrenheit) and C (Celsius) temperature scales. How do they place different temperatures, e.g. 70°F and 24°C? Which scale is easiest to use?
What happens when the temperature rises by 6 degrees then drops by 16 degrees in either scale? |
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Extensions |
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The average human body temperature is 98.6°F. How do you find that on the C scale?
How can you write a rule for converting one to the other?
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End of Lesson Reflection |
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How different are the uses of the number line in Episodes 1, 2 and 3?
What image of number lines in your head is more useful?
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