Try grouping the dominoes in the ways described. Are there any left
over each time? Can you explain why?
This activity challenges you to make collections of shapes. Can you
give your collection a name?
Use the interactivity to sort these numbers into sets. Can you give
each set a name?
Find as many different ways to sort them into groups as you can.
You may like to use this interactivity to drag the houses into groups.