Addition work mats. These mats were made using clipart. The small pieces serve as counters. The kids attach the pieces to the mat using velcro. The students use a die as a number generator.
These students are playing War with Santa playing cards. The cards came from the dollar bin at Target. Playing cards make great number generators too because you can decide what numbers who want to use by taking out certain cards.
These students are working on greater than less than. They draw a number out of a sack. Then they make a set of that many counters. Then they draw another number and do the same. Finally, they determine which number is greater and place the "number muncher" in that direction.