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The latest from this year’s TCEA show is Promethean’s huge ActivWallinteractive projection system. As if the 8.5-foot version of Promethean’s ActiveWall projection system wasn’t big enough, the company now has an 11.25-foot version on the way. The system provides 128.7- by 50.7-inches of ultra-wide space to work with, is responsive to four pens at once and responds to as many as 20 individual touch points. This makes it just as good for kids working on a group map project as for a teacher going through the steps for solving a quadratic equation.

The ActivWall spec sheet reads like a wish list for classroom technology with a projector that puts out 1,920 by 720 resolution, although at more than 10-feet wide, the interactive screen will stress the size of many classrooms. It has a pair of 18-watt speakers and uses the company’s LaserView technology to replace lamps with a solid state illumination source. The projector delivers up to 3,000 lumens and has a rated lifetime of 20,000 hours, so there’s no lamp to change – ever. It has a Web browser and can save all notations at the end of the lesson.

The big step forward is its ability to link with any computer in the classroom over a wireless connection. It works with iPads, Androids, Macs and PCs so that any child or teacher can project what’s on their screen. It should be available later this and comes with a three-year warranty.