Lesson 3 Number lines galore

Episode 3

Reasoning Resources:
Worksheet 3 photocopied on to card and cut into strips C and F
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?
  • Extensions

  • 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?
  • End of Lesson Reflection
  • 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?
  • License

    Thinking Mathematics Lessons Copyright © by Michael Shayer and Mundher Adhami. All Rights Reserved.

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