Teacher Information

Phone: (281) 329-2302


Degrees and Certifications:

BBA in International Business and Economics Minor in Spanish TEFL Certified

Mr. Rene Casallas

Hello! My name is Mr. Casallas, and this is my first year teacning English at GBHS! Prior to teaching at GBHS I was teaching English in Madrid, Spain, for 2 years in their public school system. I received my bachelors degree from Sam Houston State University and worked for the Houston Public Library as a youth librarian for 4 years before I decided to become a teacher. I'm excited to be back in the US and happy to be a part of the team at GBHS. I love reading and strive to encourage and strengthen enthusiasm for reading with my students. 

Teacher Schedule

  • Period 1: English I
    Period 2: English I
    Period 3: Conference
    Period 4: English I
    Period 5: English I
    Period 6: Common Planning
    Period 7: English I

Teacher Tutorial Schedule