"Math Duel is an iPad app that could be a hit in a classroom that doesn't have enough iPads for every student. Math Duel provides a split screen so that two students can compete in races to correctly answer mathematics problem as quickly as they can. Each player is presented an addition, multiplication, subtraction, or division problem to answer in the app. Both players are shown the same type of problem at the same time."
"Want to make like Elton John and Billy Joel, dueling across from each other on two pianos, playing the hits from both of your huge ouvre of pop tunes? Well, except for the whole you're-not-either-one-of-those-guys part, you can play two piano-like keyboards across from another friend on your iPad, with new free app, Duette."