Degrees and Certifications:

B.A. Psychology - University of Texas at Austin M.A. Social Work - University of Houston

Ms. Tricia Castellanos


Greenback Open House Powerpoint Presentation

My name is Tricia Castellanos, and this is my 13th year teaching at Johnson High School. I have a bachelor's degree from The University of Texas at Austin in psychology and a Masters degree in Social Work from the University of Houston.  I practiced as a crisis intervention counselor in the Houston area for 3 1/2 years before I began what I believe is my true calling, teaching.  My first teaching job was at The Woodlands High School in the Houston area.  In 2000, my family moved to San Antonio, and I taught at Reagan high school for 3 years.  I have 3 boys and took about 6 years off of teaching when they were little to stay home full time.  I started at Johnson the 2009-2010 school year.   My oldest son graduated from Johnson in 2014 and is a recent Texas A & M University graduate.  My middle son graduated Johnson in 2017 and is a senior at Texas A & M.  My youngest graduated Johnson this past spring and will be following in his brothers footsteps at Texas A & M!  I look forward to a great year with your students.  

Class Schedule

  • Semester 1 - Fall 2021

    1st Period - AP Government

    2nd Period - Psychology

    3rd Period - AP Government

    4th Period - AP Psychology

    5th Period - Lunch

    6th Period - AP Government

    7th Period - AP Psychology