Phone: 210-356-0400


Degrees and Certifications:

BS Business Administration, SFA Teaching Certificate K-12, UTSA

Mr. Derek Canfield

This is my 24th year with NEISD and first year teaching at Johnson High School. I am looking forward to working with you and being part of the Jags family.

I am excited to be Teaching Algebra I Resource and co-teaching Algebra I/II this year.  

The best way to contact me is via email:

Thank you,
-Wishing a wonderful year ahead

Mr. Canfield

  • Daily Schedule

    Period 1   Algebra I   RM A361   Co-Teach Mr. Heim
    Period 2   Algebra I   RM A361   Co-Teach Mr. Heim
    Period 3   Algebra I   RM A206   Ms. Staggs /split class
    Period 3   Algebra II  RM A312   Ms. Crocker /split class
    Period 4   Algebra R  RM A263
    Period 5   Algebra I   RM A361   Co-Teach Mr. Heim
    Period 6   Lunch
    Period 7   Algebra I   RM A361    Mr. Heim /split class
    Period 7   Algebra II  RM F201    Mr. Garza / split class
    Period 8   Conference


    RM A361 daily 
    Monday 8:10-8:40, 4:25-4:50
    Tuesday 8:10-8:40
    Wednesday 8:10-8:40, 4:25-4:50 
    Thursday 8:10-8:40, 4:25-4:50
    Friday 8:10-8:40
    or RM A263 by request

    Don't wait until the last minute.  If you need help,
    there are a ton of resources and people available.