Administration & Leadership Team

  • Administrators


    Assistant Principal

    David Casco joined Dallas Independent School District in 2008. He joined Kleberg Elementary in 2014. His certification is EC-4 Bilingual and EC-12 Administration. He started his teaching career in early childhood and transitioned into teaching 5th grade science. 

    Mr. Casco graduated from South Garland High School and received his Bachelor of Arts in Criminal Justice/Criminology from the University of Texas at Arlington. He pursued his Master of Science in Education with a focus on Administration at Concordia University.

    David Casco - Assistant Principal -
    Lisa Clark
    Assistant Principal

    Lisa Clark joined Dallas Independent School District in 2018.  She joined Highland Meadows Elementary in 2021.  Her career began at Garland ISD, where she taught Special Education for several years, fourth grade Science, 3rd grade and Kindergarten before transferring to Heather Glen Elementary as a Reading Interventionist.  In Dallas ISD, she served as Reading Coach at Umphrey Lee Elementary. Before joining Kleberg Elementary, Mrs. Clark was the Assistant Principal at Highland Meadows Elementary.

    Mrs. Clark graduated from Natchitoches Central High School in Louisiana.  She received her undergraduate degree from Paul Quinn College and earned her master’s degree in Educational Administration from Lamar University in Beaumont, Texas.

    Mrs. Clark believes that all children can learn, Students learn best when they are actively engaged in their own learning. She believes in focusing on not only their cognitive development but also their emotional and social well-being, which is equally necessary for learning to occur.

    Lisa Clark-Assistant Principal-

  • Counselor

    Krystal Robertson joined Dallas Independent School District in 1999. Her career began at John Ireland Elementary where she taught 2nd grade and received recognition.  She has also taught 2nd grade at Amelia Earhart Learning Center and served as a grade level chairperson.  She was bestowed the honor of Teacher of the Year at Amelia Earhart Learning Center. For the last nine years, she has taught Kindergarten, 1st, 2nd, and 4th grade at Sidney Lanier Vanguard for the Expressive Arts.  It is there where she was a Team Leader and an AVID Site Team Member.

    Ms. Robertson is a native of New Orleans, La.  She graduated from Nicholls State University in Thibodaux, La. with a Bachelor of General Studies.  She received a Masters of Arts degree in School Counseling from Amberton University.

    Ms. Robertson’s desire to become a school counselor stems from wanting to help students achieve academically, socially, and emotionally.  She believes that all students can learn and succeed with proper guidance,

    She is privileged to be a part of Kleberg Elementary and working with teachers, parents, and students as a community to enhance the learning environment.  She looks forward to helping students become college and career ready.

    Krystal Robertson-