Complex sentence: The school is divided into 2 and a half levels, the upper levels mainly reserved for upperclassmen and the lower reserved for the jr. high students and the wood shop and agriculture classes the cafeteria and pool are located on the mid-level.
Split into simpler sentences: The school is divided into 2 and a half levels, the upper levels mainly reserved for upperclassmen and the lower reserved for the junior high students. The wood shop and agriculture classes, the cafeteria and pool are located on the mid-level.