| August 16-19, 2011 |
Student Orientation (grades 10-12) |
| August 22, 2011 |
First Day of School - Freshmen |
| August 23, 2011 |
First Day of School - All Students |
| August 31, 2011 |
Open House A-L |
| September 1, 2011 |
Late Arrival |
| September 5, 2011 |
Labor Day - No School |
| September 8, 2011 |
Open House M-Z |
| September 9, 2011 |
Late Arrival |
| September 15, 2011 |
Late Arrival - Teacher Planning |
| September 24, 2011 |
Homecoming Dance |
| September 28, 2011 |
End of First 6-Week Grading Period |
| September 29, 2011 |
Rosh Hashanah - Non-Attendance Day |
| October 5, 2011 |
PLAN/Explore/Practice ACT (Late Arrival for Seniors) |
| October 7, 2011 |
Teacher Institute - No School |
| October 10, 2011 |
Columbus Day - No School |
| October 15, 2011 |
PSAT Exam at Stevenson |
| October 20, 2011 |
Late Arrival - Staff Development |
| November 10, 2011 |
End of Second 6-Week Grading Period |
| November 11, 2011 |
Veterans Day - No School |
| November 17, 2011 |
Late Arrival - Teacher Planning |
| November 23, 2011 |
2:30 Dismissal |
| November 24-25, 2011 |
Thanksgiving Break - No School |
| December 8, 2011 |
Late Arrival - Staff Development |
| December 19, 2011-January 2, 2012 |
Winter Break |
| January 3, 2012 |
Classes Resume |
| January 9, 2012 |
End of Third 6-Week Grading Period |
| January 10-12, 2012 |
Semester Exams |
| January 13, 2012 |
Institute Day - No School |
| January 16, 2012 |
Martin Luther King Jr. Day - No School |
| January 17, 2012 |
Non-Attendance Day |
| January 18, 2012 |
Second Semester Begins |
| January 26, 2012 |
Late Arrival - Teacher Planning |
| February 7-8, 2012 |
Odyssey |
| February 11, 2012 |
Winterfest Dance |
| February 16, 2012 |
Late Arrival - Staff Development |
| February 20, 2012 |
Presidents Day - No School |
| March 2, 2012 |
End of Fourth 6-Week Grading Period |
| March 5, 2012 |
Casimir Pulaski Day - No School |
| March 15, 2012 |
Late Arrival - Teacher Planning |
| March 26-30, 2012 |
Spring Break |
| April 2, 2012 |
Classes Resume |
| April 6, 2012 |
Non-Attendance Day |
| April 12, 2012 |
Late Arrival - Staff Development |
| April 20, 2012 |
End of Fifth 6-Week Grading Period |
| April 24-25, 2012 |
Prairie State Achievement Exams |
| May 7-18, 2012 |
Advanced Placement Exams |
| May 19, 2012 |
Prom |
| May 28, 2012 |
Memorial Day - No School |
| June 1, 2012 |
End of Sixth 6-Week Grading Period |
| June 4-6, 2012 |
Final Exams |
| June 7, 2012 |
Graduation |
| June 11-July 3, 2012 |
Summer School Session 1 |
| July 9-August 2, 2012 |
Summer School Session 2 |