At my school, I am in charge of our Homework Hangout program. We meet for an hour after school, three days a week, to help students that struggle with homework complete their work. We have some students that don't like to work hard or even show up so I came up with this reward system to praise those who come, work hard, and complete work.
If they come, they get 1point. If they behave at Homework Hangout and on the bus, they get 1 point. For each assignment they complete, they get 1 point. For every 3points earned, the can write their name on a ticket to be drawn at the end of the week for a prize.