I have a homework chart that has five rows and five columns. Each time a homework assignment is turned in on time, the student gets a sticker. When one row is filled with stickers, the student earns a slip that's good for a prize from the prize box. Prize slips are also given on Mondays for the students that completed all the homework the previous week. When a second row is filled with stickers, the student receives a homework coupon. This continues until all the rows are filled with stickers and then the students get to take their charts home and we start a new one. Our grade level has free time on Fridays for the students that completed all of their assignments. One classroom is designated as the detention room and any students with incomplete work go there to finish their work while the others play. This works quite well. I see a lot more completed homework this way.