Minecraft is an award winning building game and something of an educational phenomenon. It's an addictive game where players build a 3D landscape by adding and destroying blocks. Play this free java version to get your class creating and imagining. No registration required. Play the multi-player version at http://www.minecraft.net/classic/list, but a free registration is needed to play as a team.
http://ictmagic.wikispaces.com/ICT+%26+Web+Tools
A great, really well designed and free maths games website which is really fun to play. My class love it. A little time is needed to setup the logins, but well worth the effort. Also has a spelling game section. http://ictmagic.wikispaces.com/Maths
This is a superb maths games and activities site. Design an avatar and stroll around and choose what activities you would like to do in a range of maths topics. The games are great and the graphics are well designed and child-friendly.
http://ictmagic.wikispaces.com/Maths
"Bingo Cards
Bingo Baker makes it easy to create bingo cards. You can generate hundreds of random cards and print them using the printer-friendly PDF (with no ads or watermarks). You can also save paper (and waste electricity instead) by playing your bingo game online (it works on the iPad)."
This is a fast, action packed typing game where you can race your car against other typists in real time online. Use your WPM to increase your MPH! Earn cash to buy upgrades.
http://ictmagic.wikispaces.com/ICT+%26+Web+Tools