Here’s an excellent resource for primary/elementary Maths from Glencoe/McGraw-Hill. It’s a flash-based set of interactive tools for reception up to year 8. It includes standard maths items, as well as graph paper and other backgrounds. It’s free, and well worth a look.
The tools also include basic IWB tools such as text, pen, a ruler/protractor and a timer. This would be quite handy for those without access to regularIWB software.
Access the resource here
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Danny Nicholson : Educator, Science teacher, ICT Consultant, PGCE lecturer, Author and Web2.0 / SMART Masters/ Interactive Whiteboard Trainer. 



This is truly awesome. Thanks for posting. I think that the teachers at my school will love it.
Outstanding tool for the IWB Danny. Thanks for sharing. We will add it to our database.