If you are looking for a or "paper" version of the story itself:
Bernard's Watch - Norriss, Andrew: Kindle Store - Amazon.com
: Bernard often uses the watch to stop time so he can finish his schoolwork or exams on separate sheets of paper, ensuring he is never late or unprepared.
: When Bernard borrows items (like a bicycle) while time is frozen, he leaves handwritten notes on paper to explain or return the items later.
