• 805 394 4750
  • 4235 Mar Vista Dr, Camarillo, CA 93010
  • Mon - Fri: 7:00 am - 3:30 pm


Rancho Campana High School Math Department offers students a range of college prep and honors classes, from Math 1 to AP Calculus. In addition, we also offer  Computer Science courses.  Teachers regularly attend professional development to hone their teaching skills and present at conferences to share their expertise and successes with other math educators.  All RCHS Math teachers are highly qualified, enthusiastic, and believe that all students can learn and be successful in school and in life.

Ashley Fennell

Colleges attended: University of California San Diego
Degrees attained: B.S. and M.Ed.
Learning Management System: Google
Courses taught: Math 1 and Math 3
Email: ashley.fennell@oxnardunion.org

Allison Halsted

Colleges attended: University of Puget Sound
Degrees attained: B.A.
Learning Management System: Canvas and Google
Courses taught: Integrated Mathematics 3, Precalculus, Precalculus Honors, and AP Calculus BC
Email: allison.halstead@oxnardunion.org

Donnie Rea

Colleges attended: University of Southern California, San Jose State University, and Fresno State University
Degrees attained: B.S.
Learning Management System: Google
Courses taught: Math 2 and Math 2H
Email: donnie.rea@oxnardunion.org

Karen Kikuchi

Colleges attended: Cal Poly Pomona and Cal State Channel Islands
Degrees attained: B.S. and M.A. 
Learning Management System: Canvas
Courses taught: Math 3H and AP Calculus AB
Email: karen.kikuchi@oxnardunion.org
 *Department Chair

Jon Sachs

Colleges attended: Ventura College, Azusa Pacific University, California State University Northridge, and  National University 
Degrees attained: B.A. and M.A.
Learning Management System: Google
Courses taught: Math 1
Email: jon.sachs@oxnardunion.org