La Sierra High School

Dr. Tania Cabeza

For appointments, please contact:

Judy Calderon, School Secretary

judith.calderon@alvordschools.org

(951) 358-1725 ext. 611100

Responsibilities:

• SSC
• Personnel
• 504s/SSTs - 11 & 12th
• Site Budget
• Community Relations
• Professional Development & Collaboration
• Site Leadership Team
• Board Meetings
• Bell Schedule/Calendar
• SPSA
• Family Engagement Center/PIQUE
• ATSI
• Student Handbook
• Senior Awards & Graduation
• Field Trips

For appointments, please contact:

Celina Martinez, Bilingual Secretary II

celina.martinez@alvordschools.org

(951) 358-1725 ext. 611101

Responsibilities:

• Discipline Grades 9th &12th & Expulsions
• Department Support/PLC
• PE & Cadet Corp
• World Languages
• VAPA
• Special Education IEPs 9th & 12th
• SSTs/504s - 9th
• AP Programs/Courses
• Registration
• Testing (all)
• Athletics
• Master Calendar Events
• PBIS
• Parent Conference Events/BTSN
• Middle school road show recruitment events
• School Website
• Yearbook

Hello Eagle Families,  

It is my sincere pleasure to serve the students, staff, and families of La Sierra High School!  

I have been an educator for almost 20 years.  In that time, I have had the opportunity to teach in multiple states and in various roles.  If I have learned anything in my time as an educator, it is that I don’t want to ever stop striving to be better at what I do and I want to help others to do the same. 

At La Sierra, I work together with our school counselors and support team to ensure that everything runs smoothly with scheduling, grades and classes. My office is located in the guidance building, so please contact me if you have any questions or concerns regarding these matters.  I promise to do everything I can to support every student’s success, and to help them realize their unlimited potential.  

I look forward to working with all the members of our Eagle family and I can’t wait to watch all our students SOAR!  

Go Eagles!!  

Brad Lyall

For appointments, please contact:

Celina Martinez, Bilingual Secretary II

celina.martinez@alvordschools.org

(951) 358-1725 ext. 611101

Degrees and Certifications:

B.A. in Mathematics
B.S. in Secondary Education
M.A. in Curriculum and Instruction
Single subject math credential
Admin credential

History:
H.S. Math Teacher (14 yrs)
Tutoring Center Director
Intervention Coordinator
Educational Consultant
Authored a book on peer tutoring
Academic Coach
Intermediate AP

Responsibilities:

• Discipline 11th & Expulsions
• Department Support/PLC
• English
• Math
• Master Schedule
• Counseling
• College & Career Center (CCGI)
• Health Office
• Enrollments/ In House Registration
• Grades
• Facilities & Williams Facilities
• Records
• Scholar Center & Tutors
• Bond
• Safety (Evac, drills, Safety Plan)
• Grounds & Custodial needs

Hello Eagles,

I am looking forward to this new school year with the La Sierra Eagles. 

Roxanne Dibel

For appointments, please contact:

Celina Martinez, Bilingual Secretary II

celina.martinez@alvordschools.org

(951) 358-1725 ext. 611101

Responsibilities:

• Discipline - 10th & 12th & Expulsions
• Department Support/PLC
• Career Technical
• Academies
• SE
• Science
• Social Science
• Special Education IEPs - 10th & 11th
• SSTs & 504s - 10th
• Library
• ELAC/ELD
• Technology & Teacher HUB
• Wellness center & Intervention center
• Academies
• Saturday School
• DLI
• Textbooks & Williams Textbooks
• Attendance & Tardy sweeps
• AVID
• Food Services