The associated recommendation would be to make sure to prepare him for changes in task demands or routine, and when transitioning from one classroom task to another. (E.g., "you have 15 minutes to answer these comprehension questions...you have five minutes to finish the questions, then we will be moving on to our vocabulary worksheet...in one minute, I'd like you to take out your vocabulary worksheets...) Allow him additional time to settle into a new task, and maybe an extra example/guided practice or two.
