About two years ago, Elkhart Middle School in Elkhart, Kan., had one electronic whiteboard. At that time, it was being used by science instructor Steve Nordby to teach seventh- and eighth-grade science classes. For Nordby, the board had quickly become an .皺 欸/ ࠃ暼療 . 帉痾 Ѐ �涆 醿焷 䀹ퟤ૩ 欸/縨૩蠏焸膿焸蕑焸૩ۘ૪蠏焸ی૪纗焸ۘ૪軸焽 ퟤ૩舸焸塰焽絑焸ퟤ૩絛焸 絪焸䀹猦W. .ၵ瘲