Describe Michael's classroom and classmates as they are presented in Chapter 13.

Michael mentions two classmates: Rudolf Bargen, a heavyset, calm and dependable chess and hockey player who is a good friend to Michael, and Sophie, a pretty young girl with brown hair and eyes, tanned skin, and a friendly demeanor. The classroom is painted yellow and white. Two glass globes are hung from the ceiling, though the rest of the room was very plain, with no pictures, paintings, or plants.