This looks quite cool (if you use Office 2007/2010). It allows you to create a interactive quiz using little more that a few extra mice. I am itching to try it the only fly in my ointment is only having 2003 installed on teacher machines.

Mouse Mischief integrates with Microsoft PowerPoint 2010 and Microsoft Office PowerPoint 2007, enabling you to insert questions, polls and drawing activity slides into your lessons.

http://www.microsoft.com/uk/multipoint/mouse-mischief/default.aspx

There are some sample lessons for you use.

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