This ledger combines the idea of classroom money, hall-pass coupons, extra-credit coupons, and other classroom reward strategies into one easy-to-manage system. Each student receives a ledger at the beginning of the year to track classroom credits and debits. They each start out with a back-to-school stipend of $20. In the column labeled "transaction type" students can earn money by doing things like solving a problem on the board or explaining their reasoning in front of the class. They are required to pay money for things like borrowing a pencil or the use of the hall pass. All transactions are marked in the balance column.
The student ledger also includes four columns on the left that can be used on review days or for daily spiral review questions. The teacher projects a question on the board and students record their answer on the ledger. (To avoid cheating the teacher can project two questions on the board and assign each question to every other student so none of the students who sit together will be working on the same question) Students will put the number of the question, their answer to the question, and the chosen risk level for their "investment." A low risk level means that if they get the question wrong they will not lose very much money. However, if they get the question right they won't earn very much money either. On the other hand, a higher risk level allows for greater risk of loss but also for greater reward.
Included is an example of how a student ledger might look at the end of a quarter.
At the very bottom of page one is a place to tally the number of times a student solve a problem at the board for money. This is a quick way to determine which students have not had as many opportunities to share their work with their classmates.