Not all the subjects meet 5 days a week. Some meet just two or three times a week. Spanish and Math are the only subjects that meet each day. The twelve-classroom building actually housed two schools. In the afternoon a whole new set of teachers and students used the building.
Class sizes are also much different.
That's an average of 35 students in a class. Lehenbauer's smallest class enrollment was 36 and her largest 42. Lehenbauer regrets this practice. I like to be personal with my students, and I was just not able to do so. If you think about it, just calling roll by each student's name would take too much time from a class of only 40 minutes.