Teacher Information

Phone: 281-327-2195


Degrees and Certifications:

MS/CIS BS/IT AS/Telecommunications Systems Texas Certified to teach Computer Science, Tech Apps and Tech Ed

Mr. Roy Thelin

I am the Computer Science teacher at RPHS. Before starting here in 2014, I was teaching in Richardson ISD for six years. My background, however, is not in education. 

I have spent all of my life on the move: 18 years as a military dependent, 24 years in the military, 2 years as an IT network manager, and 4 years as an IT contractor in Southwest Asia.

When I am not doing teacher related work, I am a record-holding amateur powerlifter and multi-site Webmaster. 

Teacher Schedule

  • Period 1: Conference
    Period 2: AP Computer Science - A & CS-III
    Period 3: AAC Computer Science
    Period 4: AAC Computer Science  
    Period 5: AP Computer Science Principles
    Period 6: AAC Computer Science  
    Period 7: Computer Science Fundamentals

Teacher Tutorial Schedule

  • Tutorial 1: By appointment only
    Tutorial 2  Tuesday 2:50 - 4:00 p.m.
    Tutorial 3: Wednesday 06:50 - 07:20 a.m.
    Tutorial 4: Thursday 2:50 - 4:00 p.m.