Students have already studied Rome, and have some background. Students understand that when Rome conquers other territories, they bring back captives to serve as slaves for Roman citizens.
Students know that criminals and debtors are used in the arenas as gladiators, and typically die.
The Roman Republic suffered governmental problems that ultimately led to the end of the Republic. The Romans did attempt reforms. However, they were unsuccessful. Students will imagine themselves to be a Roman consul. They have some power, but they are not gods.