During the school year, THEO is open Monday-Thursday 8:00 a.m. – 4:00 p.m. and Fridays 8:00 a.m.-2:30 p.m.   Check the THEO calendar for our holidays.

Interested in applying?  Click on the button marked Apply on the tool bar to find the application and fee list.

Call 469-277-8875 for an appointment  if you would like a  tour or for a meeting with our Director.

THEO Friday Adventures will follow THEO’s calendar.

THEO’s Annual Holiday Schedule – THEO closes for the following holidays:

  • Labor Day – Monday only
  • Thanksgiving week – Monday-Friday, November 22-26, 2021
  • Christmas break begins on a different Monday every year, mid-December – This year Christmas Break begins Monday, December 13, 2021.
  • Spring Break two weeks March 14 – 25, 2022 (two weeks except Collin College Dual Credit classes will only break for Collin College’s published spring break)
  • Good Friday, April 15,2021
  • THEO Graduation 2022 date is TBD

THEO 2021-2022 Calendar

THEO semi-annual OPEN HOUSE is Saturday, August 7, 2021 from 9-11 a.m.

2021-2022 Classes begin August 16, 2020 except for Mrs. Smith’s science classes which begin August 30

THEO does not close for Veterans Day, Presidents’ Day or Martin Luther King Day, nor for election day.

THEO closes from November 22-26, 2021 for Thanksgiving break.

THEO Christmas Break begins Monday, December 13

Spring 2021 semester resumes on Monday, January 3, 2022

Classes end on Friday, May 6, 2022 unless extenuating circumstances call for May 9-14, 2022 to be  needed for spring  day make up