Phone: (210)356-0400


Degrees and Certifications:

B.A. English, with Minor in Mathematics Texas A&M University

Mrs. Rachelle Arechiga

Welcome to Mrs. Arechiga's class!  This is my 20th year teaching mathematics, the last 15 of which have been in NEISD.  I have been at Johnson since its opening, teaching Algebra II GT/PAP, Pre-Calculus Pre-AP, and Calculus AB during that time.  

I grew up in NEISD, attending Stahl, Wood, and Madison.  I then attended Texas A&M University, double-majoring in English and Mathematics.  While I love reading literature and poetry, and I have my students do some writing throughout the year to gain confidence with technical writing, I enjoy the mathematics I teach more.  Upper-level math is fun to me, and I hope to make it enjoyable for my students.


My husband and I have been married for 15 years. I am the proud mom to three boys - James (6th grade), Joshua (3rd grade), and Joel (1 year old). We stay busy with golf, piano, and a toddler. 

  • From Monday, March 23rd through Friday, April 3rd, we will be utilizing distance learning.

    Algebra 2 PreAP will utilize Edmodo, Google classroom, Remind, and Zoom. Students should already be members of our Edmodo group and my Remind & Google classroom groups.

    PreCal PreAP OnRamps will utilize Google classroom, Remind, and the UT Canvas system. Zoom is available for any live tutoring students may need.

    Please email Mrs. Arechiga at if you have any questions or need a code to join a group.

    Please take care of yourselves and stay healthy. Let me know how I can help you during the transition to this new format and during this uncertain time.

Classroom Announcements

Class Schedule

  • Monday, Thursday, Friday                                                          

    1st period (8:45 - 9:35)  Algebra II Pre-AP
    2nd period (9:40 - 10:35)  Conference
    3rd period (10:40 - 11:30)  PreCalulus Pre-AP OnRamps
    4th period (11:35 - 12:25)  Lunch
    5th period (12:30 - 1:20)   Algebra II Pre-AP
    6th period (1:25 - 2:15)   PreCalculus Pre-AP OnRamps 
    7th period (2:20 - 3:10)   Pre-Calculus Pre-AP OnRamps
    8th period (3:15 - 4:05)   Algebra II Pre-AP

    Tuesday, Wednesday
    1st period (8:45 - 9:30)  Algebra II Pre-AP
    2nd period (9:35 - 10:25)  Conference
    Flex (10:30 - 11:05)  
    3rd period (11:10 - 11:55)  PreCalulus Pre-AP OnRamps
    4th period (12:00 - 12:45)  Lunch
    5th period (12:50 - 1:35)  Algebra II Pre-AP
    6th period (1:40 - 2:25)   PreCalulus Pre-AP OnRamps
    7th period (2:30 - 3:15)  PreCalulus Pre-AP OnRamps
    8th period (3:20 - 4:05)  Algebra II Pre-AP