Cambrian Academy
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4340 Almaden Expressway, San Jose, CA 95118


Cambrian Academy generally hires experienced teachers with Master or Doctorate degrees, a passion for teaching, and a track record of personal achievement as well as proven student success.

Jesse Warner

Assistant Headmaster

Mr. Warner comes to us from the American Advanced Academy, where he has many years experience teaching classes for advanced junior high and high school students. He received his Bachelors Degree from UC Santa Cruz and his Masters from George Mason University.

His education also includes Archaeology Studies at UC Davis, Shakespeare Studies at UCLA, and Intensive Italian Studies at UC Berkeley.

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Daniel Coca

History, Civics, Economics

Mr. Coca comes to us with many years of teaching experience at the middle school and high school level. He has both taught in academic college prep schools and worked with at-risk youth. Before coming to Cambrian Academy, he was an adjunct professor of Political Science at Highline College in Washington. He studied political science and history at Chapman University, and cultural studies at Dartmouth.

Mr. Coca is the lead college admissions counselor for our seniors, and he continues to ensure that 100% of Cambrian Academy's graduates are accepted to college.

His prior experience also includes work as an athletic coach and recreational director in both baseball and boxing.

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Antoinette Whytoshek

Spanish and French

Ms. Whytoshek comes to us with many years of experience in her field. She was a teacher at St. Francis High School for 17 years where she taught Spanish, French, and World Literature. She helped to create the AP program there and served in many other capacities including Department Chair (1992-1995), Curriculum Committee (cf. Department Chair), Student Relations Task Force, Chess Team Moderator, International Club Moderator, Foreign Languages Honor Societies Moderator.

She previously worked at Stanford University and went to school at San Jose State and the University of Granada in Spain.

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Jim Johnson

History and Forensic Science

Mr. Johnson retired from Lockheed Martin after 29 years as a Systems Engineer. He has a BS degree from Cal Poly, San Luis Obispo, a BS in Computer Science from the University of Maryland, an MS in Computer Information Systems from Boston University and a MA in US History from George Mason University. He lived in Japan for 2 years while serving as an Electronic Warfare Analyst in the US Army and lived in Great Britain for 19 years while with Lockheed. He taught Computer Science for the University of Maryland in Great Britain for 10 years as a part-time adjunct. Since retiring, he enjoys tutoring English, AP US History and AP World History and reading history, psychology, and foreign affairs and good mystery stories.

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Padma Mani

AP Calculus, Algebra, and Geometry

A highly capable and experienced math teacher with a lifetime of commitment to teaching math both at the high school and college levels. In 2015, Ms. Mani was recognized as the Teacher of the Year by the Santa Clara Valley Mathematics Association. Recognized by UC Irvine in 2012 and 2014 - an award for select few outstanding teachers in California. Recognized by UC San Diego in 2002 and 2003 for Excellence in Teaching.

Ms. Mani received her B.S. in Education from the University of Jabalpur, M.P., India, her B.S in Mathematics from Church Mission Society College, Kerala, India, and her M.S in Mathematics from the University of Kerala, India, where she graduated in the top 10% of her class. She has been an AP exam reader for the College Board since 1999.

Her hobbies include music, traveling and books.

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Ron Castia

Music, Audio Engineering, PE

Mr Castia has over 30 years of experience performing live, reaching back to his early high school years when he performed as a lead guitarist in a Bay Area original music band, as well as his high school jazz band where he also filled in on bass when not on the guitar. He currently performs regularly as the lead singer for a local cover band (Reckless Few) that plays at least twice a month at various venues and festivals, covering songs from Journey, Rush, and REO Speedwagon, just to name a few. He has written, recorded, and performed several original songs that have been heard on 107.7 The Bone, Spotify, iTunes, and other streaming music apps.

Mr. Castia owns and operates a live audio company providing full digital sound reinforcement to local bands, venues, and corporate events. In addition, he provides his sound/audio engineering services to Studio Instrument Rentals, AKA Concerts, and Treblemaker Entertainment. He also works as an A1 audio technician, and L2 lighting technician contracting to corporate A/V Lighting companies for corporate events.

Mr. Castia is an active competitive cyclist, coach, and owns a custom sports apparel brand, with 20 years of racing experience, including racing in the Professional ranks in Cross Country Mt. Bike events. Accomplishments include podium finishes at several 24 Hour Mt. Bike races, along with respectable finishes Costa Rica's La Ruta de Los Conquistadores, a 4 day MTB stage race that covers the route that the Spanish Conquistadores used to cross Central America. Listed as one of the top ten hardest adventure races by Outdoor Magazine.

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Ann Connolly

Biology, MS Science, Anatomy and Physiology, Algebra

Soon after completing her Zoology degree at the University of Hawaii, she returned to the mainland and taught high school Chemistry, Physical Science, Human Anatomy and Physiology, and Biology (1997-2010). Then moving "back" to Hawaii in 2011, she taught high school and middle school classes including Chemistry, Conceptual Physics, Human Anatomy and Physiology, Math, 6th-10th Grade Coding, Beginning and Intermediate Computer, and was the 6th-12th Grade Robotics coach and instructor. This range of experience means she can challenge our brightest high school students while nurturing our youngest aspiring scientists.

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Miguel Garcia

Physics, Math, Engineering

After graduating from UC Davis with a degree in Applied Physics, Mr. Garcia worked as a laser design scientist at the Lawrence Livermore National Laboratory until the year 2000. Since then, he has been a Science and Math teacher working with students ranging from middle school to college. He has taught Engineering, Physics, Biology, and Math. He is fully aligned with our college prep mission, with pride in past students now attending Cornell, San Jose State, and Santa Clara University, as well as three of his Engineering students currently attending UC Berkeley.

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Glenn Katz - Guest Instructor


Mr. Katz is a Lecturer in the Department of Civil & Environmental Engineering at Stanford University specializing in Architectural Design Studio, Building Information Modeling (BIM), and Parametric Design. Also, he has been with AutoDesk since 2011 as an AEC Education Specialist where he conducts technology product training through AutoDesk University. With CSDGC, Mr. Katz is collaborating on the Sustainable Urban Systems project as well as the Youth Leadership Program. He received his B.S. in Civil Engineering (1981) from MIT, and his M.S. in Civil Engineering (1982) from Stanford University.

David Delgado

College Preparatory Counseling
Motorsports and Stage Band

Mr. Delgado, a graduate of UC Berkeley, brings us over 25 years of private school management experience. His experience includes various levels of administration, school development and organization, multi-campus accreditation, quality assurance, curriculum development, teacher selection and training, student assessment, student counseling, teaching, and problem solving.



  • -- Association for Supervision and Curriculum Development (ASCD)
  • -- National Association of Secondary School Principals (NASSP)
  • -- Saratoga Rotary Club, Board of Directors
  • -- Saratoga Chamber of Commerce, Board of Directors

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