Arroyo High School

Title: Principal

Degree(s):

• Bachelor of Arts in Soical Science, Cal State University, Long Beach

• Master of Arts in Educational Administration, Azusa Pacific University

Certification(s):

• Single Subject Teaching Credential in Social Science

• Administrative Services Credential

School(s)/University:

Year Started in Education: 1998

Year Started at Arroyo: 2019

About: A graduate of El Monte High School (Class of 1992), Gabriel Flores has dedicated his entire career to the El Monte Union High School District. He began in 1998 as a social science teacher at his alma mater before transitioning into administrative roles. He has served as an assistant principal at El Monte, South El Monte, and Arroyo high schools. He became Arroyo's Assistant Principal of Instruction in 2019 and was appointed Principal in 2020. A husband and father of four, Mr. Flores has lifelong El Monte connections, first as someone who grew up in the community and now as an educator committed to ensuring students have a positive and enriching high school experience.

Title: Assistant Principal of Student Services

Degree(s):

• Bachelor of Arts in English, Minor in Education and Creative Writing, Eastern Illinois University

• Master of Arts in Educational Administration, Cal State Los Angeles

Certification(s):

• Single Subject Teaching Credential in English

• Administrative Services Credential

School(s)/University:

• Eastern Illinois University

• Cal State Los Angeles

Year Started at Arroyo: 2019

About:

James Eder is in his 7th year as an Arroyo Knight and his 11th year with the El Monte Union High School District.

Originally from Chicago, Illinois, James joined the Marine Corps at age 17 and was stationed at Camp Pendleton, California—where he decided he never wanted to return to the snow. After his service, he returned to Illinois to complete his education, earning a B.A. in English with a minor in Education from Eastern Illinois University, fully funded through the Veteran’s Grant and GI Bill.

James taught English for seven years before becoming an administrator, a role he has now held for 10 years. At Arroyo High School, he oversees the Attendance Office, Guidance Office, Master Schedule, Campus Supervisors, and the Health Office. These responsibilities give him the opportunity to work with nearly every student on campus in some capacity.

James takes great pride in being a Knight and is committed to ensuring Arroyo High School remains a safe and welcoming environment for all students. He believes strongly in upholding the Knight’s code of chivalry—courage, loyalty, honor, and justice—along with virtues such as mercy, courtesy, generosity, and faith. He leads by example and makes himself available to students, staff, and families.

Even on the most challenging days, James is proud to be a Knight.
GO KNIGHTS!!!

Title: Assistant Principal

Degree(s):

• Bachelor of Science in Social Science, Minor in Geography, Cal Poly Pomona

• Master in Educational Leadership, Cal State Fullerton

Certification(s):

• Subject Teaching Credential in Social Science

• Administrative Services Credential

School(s)/University:

• Cal Poly Pomona (Undergraduate)

• Cal State Fullerton (Graduate)

Year Started in Education: 1997

Year Started at Arroyo: 1997, Arroyo High School Graduate, Class of 1992

About:

Jamie Witt is a proud alumnus of Arroyo High School and is honored to serve as an Assistant Principal at her alma mater. With seven years of administrative experience, she has overseen both the Activities and Instruction offices. Jamie’s career at Arroyo began as a social science teacher, specializing in government and economics, while also teaching AVID for 22 years. In 2019, she was recognized as the Los Angeles County Teacher of the Year. She has also coordinated impactful student programs such as Shields Up, AVID, and Link Crew.

Jamie holds a Bachelor of Science in Social Science from Cal Poly Pomona and a Master of Science in Educational Leadership from Cal State Fullerton. She also earned both her Social Science teaching credential and her School Administration credential.

Her passion for education is rooted in her belief in the power of building lasting relationships with students and guiding them as they grow into future leaders. Jamie is committed to providing strong academic programs that prepare students for both college and career pathways, while also supporting their social development. She strongly values student participation in athletics, co-curricular, and extracurricular activities, recognizing that these experiences foster school connectedness and contribute to academic success.

In her current role overseeing instruction, Jamie is excited to collaborate with Arroyo’s dedicated faculty to create strategies and structures that support the evolving needs of students. Her goal is to ensure every student is challenged academically while receiving the support necessary to thrive.

Outside of school, Jamie enjoys hiking the local mountains and, as a proud parent of an Arroyo Knight, can often be found cheering on Arroyo’s athletic teams.
GO KNIGHTS!!!

Title: Assistant Principal

Degree(s):

• Bachelor of Science in Mathematics, Cal Poly Pomona

• Master of Arts in Educational Leadership, Cal Poly Pomona

Certification(s):

• Single Subject Teaching Credential in Mathematics

• Administrative Services Credential

School(s)/University: Cal Poly Pomona

Year Started at Arroyo: 2025

About:

Tim Duong, a 23-year veteran of the El Monte Union High School District, began his journey locally at Gidley Elementary after his family immigrated to the United States in 1981. He grew up in El Monte and later attended Rosemead High School. Tim went on to earn a Bachelor of Science in Mathematics and a Master of Arts in Educational Leadership from Cal Poly Pomona.

He began his teaching career in 2002 at South El Monte High School, where he taught mathematics. Over the course of his 23-year career, Tim has also served as a Math TOSA, Data and Assessment TOSA, OPL Teacher, and Administrator. In his current role at Arroyo High School, he oversees the Activities Office.

Outside of his professional responsibilities, Tim has been married for over 21 years and is the proud father of an 8-year-old son. His passion for education centers on creating meaningful learning experiences that empower students and supporting families in achieving success.

GO KNIGHTS!!!