1) Liam, a 17-year-old student with ADHD, frequently gets out of his seat without permission in his history class, distracting others and interrupting lessons.
2) His teacher, Mr. Jones, collected data on Liam's behavior and found it was worse after his parents' divorce and occurred when activities were boring or difficult.
3) Mr. Jones created a plan to give Liam replacement behaviors like a stress ball to use in his seat, along with a scheduled break, in an effort to reduce unwanted out-of-seat time to zero occurrences per class.