Phone: 210-356-1800


Degrees and Certifications:

Bachelor of Arts in Biology, minor in Chemistry M.Ed. Educational Administration Science Composite Teacher Certification Principal Certification

Karly Yzaguirre

Welcome to chemistry!!  A little about me...

I graduated from Texas A&M University in 1998 with a degree in biology and a minor in chemistry.  I also earned my science composite teacher certification while at Texas A&M.  I began teaching at Marshall High School in 1998.  I worked there for 1 year, then came to NEISD to open Reagan High School.  I taught at Reagan for 7 years, then took 7 years off to raise my kids.    

My oldest son is a senior and my younger son is a freshman, both at Reagan.  We all enjoy sports, fishing, hanging out at the beach and being with family. 

While at Reagan the first time, I went to graduate school and earned my masters degree in educational administration with principal certification. I returned to Reagan in 2013 and have been here since then.  I have taught biology, chemistry, honors chemistry, AP chemistry and organic chemistry.  

This year I am teaching 2 sections of AP chemistry and 4 sections of honors chemistry.  I am very excited to work with the teachers in my department and with the administration to keep the Reagan science department excelling in all areas of science education.

Class Schedule

  • 1st period: Honors Chemistry

    2nd period: Honors Chemistry

    3rd period: Honors Chemistry

    4th period: Honors Chemistry

    5th period:  LUNCH

    6th period:  AP Chemistry 

    7th period:  AP Chemistry

    8th period:  CONFERENCE