WORKDAY--CLASSROOM TEACHERS. Regardless of the timing of preparation periods, the workday for the faculty unit members who are classroom teachers will commence at 7:45 a.m. and end at 3:45 p.m., except for Fridays when the day will end at 3:30 p.m., with a forty-five (45) minute duty-free lunch period, and all classroom teachers must be in the school building during the workday. Faculty unit members must sign out at the front office before leaving the campus during the workday and must sign in upon returning to the campus during the workday. When attendance is required at IEP meetings or other scheduled meetings during lunch or after school hours, the administration will make a reasonable effort to adjust the faculty unit member’s schedule accordingly. Part-time faculty unit members will work only that portion of the day/week which is equal to their percentages of a full-time unit member. Part-time faculty unit may be required to participate in faculty meetings or scheduled professional activities if such meetings or activities fall during their assigned working hours. If, in the judgment of the administration, it is necessary that a part-time faculty unit member attend professional activities which are scheduled during other than the faculty unit member's normal working hours, a part-time unit member may be required to attend and will be compensated for the additional working hours.