If you chose to elect a single representative from each homeroom regardless of the number of students in each room, you would be following a model most like the Senate.
Explanation:
The United States Senate is composed of 100 senators, 2 for each state, regardless of population. That is, it is a congressional chamber that is not proportional but equal. In the example, i would be choosing a single representative from each homeroom regardless of the number of students, to the system would be the same that the used in the Senate.
