Phone: 469-752-8583


Degrees and Certifications:

BS University of Wyoming MS University of Wyoming Ed.D. University of Wyoming Certified: 7-12 Science, P.E., Principal, Superintendent

Dr. Jefferie Thielbar

I graduated from the University of Wyoming with a Masters Degree from the College of Health Sciences.  I was a graduate assistant and specialized in Psycho-Motor Development having worked both at the University and at the Colorado Springs Olympic Training Center.  I started teaching Biology in Wyoming and taught for 10 years before getting my principal certificate from Chadron State College.  I also served as a high school principal in both Wyoming and Alaska while earning my doctorate degree in Education Leadership from the University of Wyoming in 2010.  So far, I have been teaching science for 16 years, been a high school principal for 10 years and a school superintendent for 3 years.  This year is my 30th year in educatio and my 5th year at Plano ISD.  



Teacher Schedule

  • 1st Period 8th Grade Honors Science

    2nd Period 8th Grade Science

    3rd Period Planning

    4th Period PLC/Department Head

    Lunch 11:28 - 11:58 (Normally)

    5th Period 8th Grade Honors Science

    6th Period 8th Grade Honors Science

    7th Period 8th Grade Science

Tutorial Schedule

  • Tutorials are held as needed.  Students just need to email me at  I will schedule a time to meet with them.  To attend tutorial, students must accesss the tutorial Google Classroom for their class. I check my email several times a day and it is the best way to contact me.  

      Bell Schedule       Async/Sync Schedule