Make everyday exciting by arranging students differently. You can hve students pick up pattern blocks, Cuisenaire rods, cards, unifix cubes, etc. as they enter the room. They then go to the table that has a matching object to the one they are holding. Or, they can pick up dittos to be used for bell work on their way in. You can draw a shape or have a math problem that they have to solve in order to find their tables for the day.