Phone: (469) 752-9300


Degrees and Certifications:

B.A. from Austin College Major in Physics and Minor in Math Alternative Teacher Certification through Collin College

Mr. Gary Sullivan

Gary Sullivan, aka Mr. Sully, is from the small town of Pottsboro which is located near Lake Texoma. There he was very active in Athletics and Academics. Growing up in a small town he developed principles centered around "Southern Chivalry" which involves respect, kindness, honesty and graciousness.

He obtained a Bachelor of Arts degree from Austin College. Where he majored in Physics and minored in Math. While at Austin College he developed a progressive, open view of the world. 

In 2017 he married an amazing woman name Lauren, who is also a teacher. Then in Jan of 2020 his first son, Tate, was born. 

Gary joined Plano Senior HS as an On-Level Physics teacher in 2011, and in 2015 became a Robotics Coaches for PSHS Robotics Team, Chain Reaction Robotics.

The On-Level Physics team a Plano Senior HS is passionate about ensuring that their students are successful, not only in physics but also in life.

  • Mr. Sullivan's Class Schedule

    Zero hour - Off

    1st Period - Physics

    2nd Period - Physics

    3rd Period - Physics

    A Lunch

    4th Period - Physics

    5th Period - Physics

    6th Period - Conference

    7th Period - Robotics