My students are allowed to use tools and manipulatives, other than calculators, to solve problems. I also pair students in groups of two and have them quiz each other with flash cards. During transition times or when students are lined up to go to a special I randomly ask them a multiplication question. If they get it correct they get a point. At the end of the week points are then traded for special privileges. I also have multiplication rules posted on the wall, for instance, anything times 0 = 0, anything times 10 you add a 0.
