Like threats, stress also biologically impairs a student's ability to learn. Knowing what to expect and establishing a routine helps reduce stress. The furniture was rearranged to provide more space, and to more comfortably seat students. I added a small table for my groaner, which made table time much easier for him. The new arrangement reduced stress by allowing students to have more personal space, and see the front of the room without having to turn their chairs around.
Emotions stimulate our brains to recall things better.
Novel activities also attract attention. I have less stress, so the students probably have less stress. Student behavior was much improved after I implemented these techniques. I also have not noticed my students fight with one another like they had in the past. I want to continue working on reducing threats and stress for my students.