School Calendar 2009 – 2010 Approved by the Williamson County Board of Education (1-20-09)
Day	Date	Definition
Tuesday-Wednesday	August 4,5	New Teacher Orientation
Thursday (No Students)	August 6	Administrative Day (All Teachers)
Friday (No Students)	August 7	District Wide Staff Development (All Teachers)
Monday (No Students)	August 10	Site Based Staff Development (All Teachers)
Tuesday (No Students)	August 11	Administrative Day (All Teachers)
Wednesday (No Students)	August 12	Administrative Day (All Teachers Work in Clsrs)
Thursday (All Students)	August 13	First full day for students
Monday (No School)	September 7	Labor Day (System Closed)
Tuesday (Students ½ day)	September 29	Parent Teacher Conferences
Wednesday (PSAT)	October 14	End of First Quarter Grading Period (44 days)
Monday-Tuesday (No School for Students)	October 19-20	Fall Break ( October 19 System Closed )
Tuesday	October 20	Site Based Staff Development (All Teachers)
Wednesday – Friday (No School)	November 25-27	Thanksgiving Holiday ( System Closed 26-27)
Tuesday-Friday	December 15-18	First Semester Exams
Friday (Students ½ Day)	December 18	End of First Semester (86 instructional days)
Monday – Friday (No School)	December 21-Jan 1	Winter Holiday-- (System Closed Dec 23-25 and Dec 30-Jan 1)
Monday	January 4	First Student Day Second Semester
Monday (No School)	January 18	Martin Luther King, Jr. Day (System Closed)
Monday (No Students)	February 15	District Wide Staff Development
Monday (No Students)	March 8	Site Based Staff Development (All Teachers)
Tuesday	March 9	ACT Testing: All 11 th Grade Students
Friday	March 12	End of Third Quarter Grading Period (47 days)
Monday-Thursday	March 22-April 1	TCAP Window
Friday– Friday (No School)	Apr 2-9	Spring Break (System Closed April 2-5)
Tuesday-Friday	May 18-21	Semester Exams
Friday (Students ½ Day)	May 21	Last Day for Students – End of Second Semester (91 instructional days)
Monday	May 24	Administrative Day (All Teachers)
Friday – Sunday	May 21-23	Graduation Window