Meet Our Administration and Office Staff

Principal- Stefani Blackman

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Hello, Amazing Abbett Families! 

I have been an educator for 15 years. I graduated from Texas State a long time ago (back when it was SWT), and several years later went to SFA for my Masters. I have taught 1st, 2nd, and 5th grades and have served both as a reading specialist and an instructional coach. I have been an assistant principal and a Student Services administrator. I come from a family of teachers–both of my sisters have taught, and my mom was a college professor at UNT.

I am passionate about my beliefs--every child can learn, every teacher has expertise, and every team can collectively create solutions. I am committed to giving students and teachers a sense of agency and voice. I hope you will soon see how committed I am to your child's success, and that your child's love of learning is our ultimate goal!

Outside of school, my four kids, three dogs, two cats, and one husband keep me busy. When I am not carting kiddos to and from the dance studio, I am reading the pile of books on my nightstand. I love spending time with my family, shopping, traveling, and listening to 90’s music while I cook. 

I am excited to grow roots in our Abbett family.  Let's have fun learning together!

Assistant Principal- Michael Warren

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Hi All Stars!

I am so happy to be part of the Abbett family! I received my undergraduate degree from the University of North Texas and my master's degree from Texas A&M Commerce. I have enjoyed a 21-year career in education. I spent 14 years teaching high school art, and even had the opportunity to serve as a K-12 STEAM Instructional Coach. Before joining GISD, I served as the Director of the Moody Advanced Professional Studies program at HPISD. 

I am married with 2 children and 3 dogs! I am also a musician and enjoy playing the piano and singing. My family loves spending time together and trying new things. We love to be outdoors,  travel, and go to the lake or beach.

I am so excited to be in Garland ISD and to build wonderful relationships with students, parents, and teachers. I hope to foster a safe and fun learning environment here at Abbett, where every single student is excited to try new things, make new friends, and grow their minds. I am eager to work with you to make Abbett the best it can possibly be!

Counselor- Geraldine Ironbar

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Hey there, Abbett All Stars! My name is Miss Ironbar and I am the new campus counselor! I graduated from the University of North Texas and was a teacher for five years. Then, I graduated with my Masters in Guidance and Counseling from Angelo State University in 2020! This will be my third year as a school counselor.

When I am not working, I love spending time with friends and family, going to church, traveling, watching movies, and playing pool! Fun Fact: I am a competitive pool player!

If your child is in need of assistance, please do not hesitate to contact me by phone or through email at I am so excited to be serving this community and cannot wait to meet each and every one of you!

Office Staff

Our Principal's secretary, Sherron Mayes, has been Abbett's "Go-To Gal" since 1999.   If you have spent any time here you know she does it all, knows the answer to every question, and is the world's best cook!

Data Clerk- Peggy  Bychkowski

Office Aide- Lorraine Duran 

Ms. Peggy and Ms. Lorraine are always ready to greet visitors.  Their warm, friendly smiles and eagerness to help always makes one feel welcome!


Meet the Nurse Mrs. Abby Mollinedo


THE BASICS! Hello, I am Abby Mollinedo and I am so excited to be here at Abbett! I am 40 years young. I live in Rowlett with my husband and two children. I enjoy traveling to the beach and lounging in the pool with friends and family. This is my third year as a school nurse. I have enjoyed working with adults at the hospital but my passion is to work with kiddos. I have also been a Children’s Church Director for 14 years. My goals are to help empower children to practice healthy lifestyles.

MY CHILDHOOD! I was born and raised in Garland, Texas. I attended Caldwell Elementary through 5th grade, went to Sam Houston Middle School and graduated from South Garland High School.

EDUCATION & WORK! I graduated with my Bachelors of Science in Nursing from Chamberlain University. I recently worked in the hospital setting on the Cardiovascular Unit and Medical Surgical floor.