Phone: 210-356-0494


Degrees and Certifications:

Mrs. Mandy Martinez

Greenback Open House Teacher Video

I am the current Cheer Director and a U.S. History teacher at Johnson High School! I recently moved here from Colorado, where I was a Social Studies Teacher at STEM School Highlands Ranch, and the Cheer Director at ThunderRidge High School. I will be going into my 13th year as a cheer coach, and my 12th year as an educator. Looking forward to a great year as a Johnson Jag!


    Course materials can be found on Google Classroom. Students can access through Launchpad. Please email teacher for more information if needed.


    1st Period: U.S. History

    2nd Period: U.S. History

    3rd Period: U.S. History

    4th Period: Cheerleading

    5th Period: Float

    6th Period: Conference

    7th Period: Cheerleading