About Teacher

Phone: 210-356-0400


Degrees and Certifications:

Bachelor of Science in Mathematics with a minor in Criminal Justice Mathematics 8-12

Ruthie Acosta

Welcome to another great year at NEISD!

So we are off to a new school year and I will be teaching Geometry and PreCal this year. 

This is my 18th year of teaching and my second year at Johnson High School...GO JAGS!

I am  product of NEISD schools and a '92 Madison High School grad.

Back To School Links

  • Greenback Night Welcome Information Powerpoint


    Period 1: Geometry

    Period 2: Geometry

    Period 3: Geometry

    Period 4: Lunch

    Period 5: Conference

    Period 6: PreCalculus

    Period 7: Geometry

    Period 8: Geometry


    Beginning next week, the week of December 4th, I will no longer have after-school tutoring on Thursdays.  Please see the tutoring schedule below.

    NEW Tutoring Schedule
    Monday  8:10 a.m. - 8:40 a.m.
    Wednesday 4:15 p.m. - 4:40 p.m.
    Thursday  8:10 a.m. - 8:40 a.m.

    If I am ever absent and you need tutoring OR if you cannot make my tutoring times, please see another teacher from the campus-wide tutoring schedule. There is one schedule for Geometry and another for PreCal.  All Test/Quiz retakes and/or corrections must be made with me.


    Geometry School-Wide Tutoring Schedule:

    PreCal School-Wide Tutoring Schedule:

    You may reach me at racost2@neisd.net