O'donnell Middle - School District Calendar - Alief Isd - 2019-2020
This Alief Isd instructional academic school calendar is extremely important as it keeps you informed of O'donnell Middle grading periods, early dismissal dates, staff development days and holidays for the O'donnell Middle calendar school year 2019-2020. As a parent and or student, you will find yourself needing this information on a regular basis, so please "like" and bookmark this page in a visible location within your favorite browser. The legend for this Alief Isd 2019-2020 calendar is at the bottom of the page. If you are browsing on your PC there is another copy of the legend in the right hand column.
