These quiz cards have an angle on one side and the type of angle it is on the other, allowing students to learn while having fun. The handy folding design means you don't need to fiddle around with trying to line up double sided printing. You just print, trim the edges, fold them in half, glue them, and then cut the cards apart and you are ready to roll.These cards are great for cooperative learning whole class games. I love Kagan games, especially Quiz-Quiz-Trade. They are a terrific way to rei