"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."

Via John Evans

Competition is a great way to make math more enjoyable for students. It is also a great, informal method teachers can use to assess their students. A math facts tournament would allow students to pratice their math facts in an exciting forum, and also provide motivation for students to learn these necessary facts. The tournament would also provide different teirs of students, which could be used later to group students, and allow differentiated instruction.