Write Touch Board Technology

In the United States the school board is being replaced for interactive, giant, touch-sensitive computer screen, which allows students and teachers to share tasks, surf the web and edit video using their fingers as pens, says Wired News. Dust and sound painful fingernails scratching on a blackboard in the past.

Students use the board to demonstrate solutions to math problems, their children draw on the board with their fingertips and explained to the class how they came up with their answers.

Teachers can display a slide-show or even a video. It is now possible to open a web page with information that is useful only in seconds.
Interactive whiteboards can be found in more than 150,000 classrooms in the U.S., and technology is also growing internationally, with presence in 75 countries.

And there is so much ability to "naughty students" to show something that is censored on the big screen during a lesson!