My contract is the same and there are a few spots where it will say the rule for fulltime and the rule for part time such as vacation days allowed since they are prorated for part time. The fee for part time is greater and must be set days. It works out well to get two part timers to share because the two fees together is more than my regular weekly rate although it is a bit more work too. For a parent with a shift work floating day schedule that might need only a few days per week but the days vary is considered fulltime since I need to reserve the whole week for them although if it is to be 2-3 days many weeks I have charged them a 4 day rate rather than the 5 day rate.