Module 2 Counting and understanding numbers
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Can I show where a whole number is on a 0 to 100 number line?

Example review questions

  • Put these numbers in the right place on this number line; 50, 90, 20, 25, 75. How did you decide where to put them?
    A number line showing 0 to 100
  • Show me where the number 17 goes on this number line. How do you know?
    A number line showing 0 to 100 divided in tens
  • Which tens number is 57 closest to?
  • On a 100-bead string, show me a quick way to find 19. Explain how you did it.
    A 100 bead string marked in tens
  • Mark and write a number on the number line that is just after 70. What number did you choose? What about just before 40?
  • What number do you think the arrow is pointing to? How did you decide?
    A number line showing 0 to 100 with an arrow pointing just before the 8th ten marker

Teaching guidance

This teaching guidance document suggests some of the key vocabulary, models, images and practical equipment that children should experience and be able to use. It also includes some teaching tips to provide a few starting points for ways of supporting children with this area of mathematics.

PDF file Can I show where a whole number is on a 0 to 100 number line? - teaching guidance | 50KB new window

Consolidation and practice

These resources are to support children in guided or independent work.

PDF file ITP Guide | 4317KB new window

SWF file Ordering Numbers ITP | 53KB new window

SWF file Number Line ITP | 47KB new window

PDF file Ordering numbers to 100 models and images chart | 111KB new window

PDF file Number line three-in-a-row game | 19KB new window

PDF file Year 2 Block A lesson notes | 1181KB new window

Opportunities to use and apply

Possible contexts include:

  • Science, e.g. monitor the growth of sunflowers and then represent their changing heights on a 0-100 number line.
  • PE, e.g. record standing long jump measurements on a metre stick marked in centimetres.
  • Length, e.g. what length does this mark between 10cm and 20cm on the ruler show?
  • Reading scales, e.g. use a metre stick to find an object that is longer than 27cm.
  • Weight, e.g. this scale shows the weight of some parcels. How much do they weigh?
    A set of scales with the pointer pointing exactly halfway between the 50 and 60 units mark.

Confirming learning

Ask probing questions such as:

  • Look at these numbers: 39 42 51 64 43 34. Which of the numbers lie between 35 and 50 on the number line? How do you know?
  • How does knowing where number 10 is on a number line help you to know where number 15 goes?
  • Explain to me how I could work out where to place 17 and 71 on this number line.
    A number line showing 0 to 100
  • What numbers do you think the arrows are pointing to? Explain your thinking.
    A number line showing 0 to 100 with one arrow pointing to halfway between the 2nd and 3rd markers and one halfway between the 7th and 8th markers
  • Think of three numbers that could be placed between the two arrows. Are there any others?
    A number line showing 0 to 100 with one arrow pointing between the 6th and 7th markers and one pointing to the 8th marker.