Resource 1: 100-square number chart

 Teacher resource for planning or adapting to use with pupils

A 100-square number chart is simply a grid, 10 squares long on each side, with the squares numbered in rows, starting with ‘1’ in the top left corner.

You may be able to buy a large chalkboard number chart, print one out from this resource or make one yourself.

Here are some example rules that pupils can easily discover when working with the 100-square number chart:

  • To go upwards by one step, subtract 10
  • To go downwards by one step, add 10
  • To go left by one step, subtract 1
  • To go right by one step, add 1

3. Simple Investigations

Resource 2: Thinking about your lesson