Teacher Information



Degrees and Certifications:

BFA Communications/Marketing/Management Certifications: Ec-4 Generalist 4-8 Generalist Ec-12 Physical Education Ec-12 Special Education

Mrs. Lou Casteel

Hello! My name is Mrs. Casteel and this is my first year at Sullivan Elementary but my 16th year in education. I began my experience in education at a private Christian school where I taught middle school and high school math and science. I then moved to central Texas for two years where I taught 5th grade math and science. When arriving in FBISD, I served as an elementary school Science Specialist teaching all students from kinder – 5th. I received my Special Education certification in 2017 and have taught k-5 Resource since then.

In addition to my love for children and teaching, I am also a fitness enthusiast and strongly believe that physical health is just as important as academic learning. Without a strong and healthy body, children will not be able to use the knowledge and skills they have gained to their maximum potential.

I am very happy to be here at MWE to serve your children and I am looking forward to an amazing year!


Teacher Schedule

  • 8:15 a.m. 4th Math Resource

    8:35 a.m. 2nd Math Resource

    10:00 a.m. 3rd Math Resource

    10:45 - 11:30 Conference

    12:30 p.m. 5th Math In Class Support

    1:20 p.m 1st Math Resource

Conference Period


    10:45 - 11:30