*Instructions for use:

• Enable content when you open the file
• Click the star on the left hand side to generate new numbers
• Click the star on the right to order the numbers.
• All squares can be switched ‘on’ and ‘off’ by clicking on the boxes
• To reveal the range, click on the word ‘range’
• All numbers in the cells are integers between 1 and 10 inclusive

At the end of this lesson, you should give your students this task to do in preparation for the next lesson. This can either be for homework or silently at the end of the lesson. This will give you an opportunity to assess the work and to find out the kinds of difficulties students have with it. You should then be able to target your help more effectively in the lesson that follows