I have been toying with the idea of establishing a bank system in my classroom, and after deciding my class theme last week, I think I am going to do it. This is about what it will look like:
I have 15 specialized jobs in my class (Class President, Materials Specialist, Class News Correspondent, Class Sanitation Specialist, Class Library Technician, Class Store Merchant, etc) and 12+ Classroom Citizens.
Every Friday, students will receive checks for their job salaries; the amount thereof to be determined by the job title and duties listed on their business cards. After receiving their check, they will need to deposit some of it, pay homework late fees or buy new pencils, etc at our school store, and then they will have some extra "class cash" to use as they will. It will buy them some privileges in our classroom (these are still to be hammered out). They will learn to cash checks, balance their own check books, write checks, and handle cash and change.
Additionally, each day, the class accountant will be responsible for looking up the daily exchange rate from Yen to USD. Students will be paid in either currency....and will be responsible for doing multiplicative conversions.
At the end of each Friday, class roles will switch (so that the lucrative salary for Class Pres ($100) can then be given to the old Materials Assistant ($55).
That's the plan... I'll keep you posted on how it goes.