| Mon, Aug 24th, 2009 | First Day of Ohio Dominican Classes |
| Tue, Sep 08th, 2009 | First Day of Charles School |
| Fri, Oct 16th, 2009 | No Classes at Charles School -- Capital Day |
| Mon, Oct 19th, 2009 - Tue, Oct 20th, 2009 | No Ohio Dominican Classes -- Midterm Break |
| Mon, Oct 26th, 2009 - Fri, Nov 06th, 2009 | Fall OGT Administered and Make-ups |
| Fri, Oct 30th, 2009 | End of First Quarter at Charles School |
| Fri, Nov 13th, 2009 | No Classes at Charles School -- Professional Day |
| Fri, Nov 13th, 2009 | Grade Cards Mailed Home |
| Sat, Nov 14th, 2009 | November Parent Group Meeting |
| Wed, Nov 25th, 2009 - Fri, Nov 27th, 2009 | No School (ODU and Charles) – Thanksgiving Holiday |
| Fri, Dec 11th, 2009 | Last Day of Ohio Dominican Classes |
| Mon, Dec 14th, 2009 - Thu, Dec 17th, 2009 | Final Exams for Ohio Dominican Classes |
| Fri, Dec 18th, 2009 | No Classes at Charles School -- Professional Day |
| Mon, Dec 21st, 2009 - Fri, Jan 01st, 2010 | Winter Recess -- No Classes |
| Mon, Jan 04th, 2010 | Charles School Classes Resume |
| Mon, Jan 11th, 2010 | Ohio Dominican Classes Resume |
| Thu, Jan 14th, 2010 | End of First Semester at Charles School |
| Thu, Jan 14th, 2010 - Fri, Jan 15th, 2010 | Finals Week |
| Fri, Jan 15th, 2010 | No Classes at Charles School -- Professional Day |
| Mon, Jan 18th, 2010 | No Classes -- Martin Luther King Jr. Day |
| Thu, Feb 11th, 2010 | Open Parent/Student/Teacher Conferences |
| Mon, Feb 15th, 2010 | No Classes at Charles School -- Professional Day |
| Wed, Feb 17th, 2010 | Invited Conferences POSTPONED |
| Mon, Mar 08th, 2010 - Fri, Mar 12th, 2010 | No Classes at Ohio Dominican -- Spring Break |
| Fri, Mar 12th, 2010 | No Classes -- Professional Day |
| Fri, Mar 12th, 2010 | End of Third Quarter at Charles School |
| Mon, Mar 15th, 2010 - Fri, Mar 19th, 2010 | Spring OGT Administered |
| Mon, Mar 15th, 2010 | Ohio Dominican Classes Resume |
| Thu, Apr 01st, 2010 | Charles School Closes 1/2 hour early |
| Fri, Apr 02nd, 2010 - Fri, Apr 09th, 2010 | No Classes at Charles School -- Spring Break |
| Mon, Apr 12th, 2010 | Charles School Classes Resume |
| Fri, Apr 23rd, 2010 | No Classes at Ohio Dominican After 1:00pm -- ODU Day |
| Mon, Apr 26th, 2010 | No Classes at Charles School -- Professional Day |
| Fri, Apr 30th, 2010 | Last Day of Ohio Dominican Spring Classes |
| Mon, May 03rd, 2010 - Thu, May 06th, 2010 | Final Exams for Ohio Dominican Classes |
| Mon, May 10th, 2010 | No Classes at Charles School -- Professional Day |
| Fri, May 28th, 2010 | Half-Day for Students |
| Mon, May 31st, 2010 | No Classes -- Memorial Day |
| Wed, Jun 02nd, 2010 | Last Day of School for Students |