Fifteen excellent Maths activities for the ActivBoard. Most can be edited and hence can be used for different age groups or used repeatedly with the same class by altering the questions. Three thumbs up!

The flipchart can be found here:
http://www.prometheanplanet.com/uk/server/show/ConResource.13732

If you are not yet a member of Promethean Planet, you will first have to register here:
http://www.prometheanplanet.com/uk/server/show/nav.914

If you want to view the activities and have some interactivity with them, but you don't have the ActivStudio software, you can download the free Viewer from here:
http://www.mypromethean.com/uk/server/show/ConWebDoc.2974

Players take it in turns to choose on any of the given dots. The first player makes the chosen dots red and the second player or computer makes the chosen dots green. The winner is the first to have four dots of their colour that can be joined by straight lines to form a square. Squares can be any size and can be tilted. Is there a winning strategy?
http://nrich.maths.org/public/viewer.php?obj_id=2526

Click on Edit and paste in a list of student names or words.
Click on either 'Typewriter' or 'Fruit Machine' to have the program randomly select from the list. A neat bit of programming. With the Fruit Machine, you can remove the names once they are chosen.
http://www.classtools.net/main_area/fruit_machine.htm

A nice little collection of interactive optical illusions.
http://www.poissonrouge.com/bigfish/en/opticalillusions.html

A virtual geoboard. A very nice implementation.
http://standards.nctm.org/document/eexamples/chap4/4.2/index.htm#applet

Bill Newell has offered to make his WinPlot files available on the web. They are for Pre-Calculus and Calculus.

Bill Newell has kindly agreed to share some Autograph files that he has created for teaching calculus. To access the files, you will have to unzip them first.

I was just experimenting with some effects in ActivStudio Version 3. Just a bit of a giggle.

The Magic Magnifying Glass can be used to reveal hidden words and pictures.

For those who don't have either Equation Editor or MathType at hand, here is a free on-line equation editor. I had a play with it, and it seems to be very good:
http://www.sitmo.com/latex/