An interactive whiteboard resource to assist in teaching common multiples using a Venn diagram. Select which two numbers you wish to generate multiples for. Either you or the students can drag the tiles on to the diagram. The tiles will glow red if they are in the wrong place and green if they are in the correct place
The resource should give you easy flexibility as you can choose which groups of multiples to work with with during the lesson. This means you can tailor the activity to suit the students as you go without having to pre-plan for each eventuality.
You may find this supporting resource on finding the Lowest Common Multiple useful: