Serif’s GraphicsPad tablet could prove valuable to educators hoping to incorporate graphics and other multimedia options into class projects and presentations. The GraphicsPad–a cordless and battery-free device–comes with an interactive pen that helps users manipulate images and words on the screen.

Anoto had its penPresenter on display at InfoComm. The penPresenter features digital pen technology and Microsoft PowerPoint, allowing students and teachers to digitally save class notes and give attention-grabbing presentations, the company says. Notes and sketches using the penPresenter can be shown on a projector screen in real time, and adjustments reportedly are easy to make.