Phone: 469-752-6257


Degrees and Certifications:

B.S. Interdisciplinary Studies with Life/Earth Science Certifications: Life Sciences 8-12 Science 7-12 Elementary Life-Earth Science Elementary Self Contained English as a Second Language

Mrs. Nancy Casillas

Mrs. Casillas teaches 7th grade Science. She grew up in north Texas and moved to Plano to raise her three children. She has been working at Robinson since 2016. She went to Texas Woman's University and graduated with a Bachelor of Science degree in Interdisciplinary Studies with Life/Earth Science. When she is not teaching, she loves spending time outdoors with her family.

Teacher Schedule

  • Period 1: Science 7

    Period 2: Science 7

    Period 3: Science 7

    Period 4: Science 7H

    Period 5: Science 7H

    Period 6: Advisory

    Period 7: Conference & Planning

    Period 8: Science 7H

Tutorial Schedule

  • Tuesday, 7:45-8:20 am



    Afternoon appointments can be communicated between parent and teacher.


    3:30-4:05 pm