ReadOasis Step 3

The professor stood in front of the class. He put his notes on a tall stand. The stand was in the middle of the room, and the professor could move around behind it. As he faced the class, there were many windows on his right. On his left were a pink door and a gray wall. Fifty-one students sat ready, but not for the lecture. They were ready to do an experiment. The subject of their research was their professor?s behavior.
The professor began to talk about the history of taxes...