We drew a number line to 20 on the board and discussed what number would be in the middle. We agreed that it would be 10 as this half way between 0 and 20. We also spoke about how this helps us to plot other numbers and agreed that numbers smaller than 10 would come before the 10 and number that were bigger than 10 would come after.
It was then our turn to have a go at making our own giant number lines, so working in our table teams we were given a long strip of paper with 0 and 20 written on and as a team we had to write and place the numbers in the correct order. The adults were very impressed at how well we worked together to do this...and we gained lots of table points! Well done Year 1