Phone: Pioneer Crossing Elem.: (512) 278-4250 Google Voice: (512) 814-5544


Degrees and Certifications:

B.S. Education M.Ed. Curriculum & Instruction Texas ESL Teacher & Principal Certification Apple Teacher

Mr. William Bellessis

I have been in education for over twenty-seven years and am proud to call myself a teacher. I come from a family of educators, so schooling was a high priority during my upbringing. My diverse family, circle of friends, and community have allowed me to continually grow as an individual, inspire as a parent, and succeed as a leader.

I have taught multiple grade levels, coached athletics at the junior and senior high schools, and currently am a summer camp director for Baylor University, University of Texas, and Indiana University. My full-time, part-time, and all-the-time occupations are kid centered, kid-driven, and kid-friendly. I am a proud father of two wonderful children that also attend Pioneer Crossing! It is my honor to be part of our 5th grade team of teachers, scholars, and parents. 

phone: 512-785-9323 


Mr. B's site/schedule:

Google Classroom: