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Welcome, Chatsworth High School Parents

and fellow education professionals!!!

This is Mr. Vallejo's web page for science classes at Chatsworth High School in the Los Angeles Unified High School District.  Chatsworth is located in the northeast corner of the San Fernando Valley in sunny southern California.  Downtown Los Angeles is located just 30 miles to the southeast.

Ben Vallejo is an adjunct professor of biology at Moorpark College, as well as one of the forty-nine National Board Certified Teachers in secondary science (AYA/Science) in the state of California.  The total number of NBCTs in the state in all areas is 1309, as of January 2002.  Nationwide, there are over 16,000 NBC Teachers.  Mr. Vallejo’s area of expertise is in the area of performance-based assessment of the California state science content standards, as he has worked as a consultant for the California Department of Education on the statewide Golden State Examination.  In addition to his current assignments, Mr. Vallejo has spent his seventeen years as an educator at Reseda High School and the North Hollywood High School Animal Studies/Biological Science Zoo Magnet Center at the Los Angeles Zoo.   Mr. Vallejo is also a mentor/master teacher for the Los Angeles Unified School District. He is on the faculty at Chatsworth Senior High School, where he teaches biology (honors, college-preparatory, and sheltered), marine biology, and advanced physical science.


Parents and guardians, please click here!

Fellow education professionals, please click here!

To view student work, please click here!

To begin your journey through The Biology Portal, click on your class:

Advanced Placement Environmental Science

Honors Biology

Marine Biology

Biology AB

Advanced Physical Science


Other useful resources:

California state science content standards

Alignment of Curriculum with the California state science content standards

The Online Biology Textbook

Chatsworth High School Home Page

Library Resources, including SIRS,, and the LA Times newsbank

UCLA Athletics—Go Bruins, Beat the Trojans!!!

Chatsworth High School Filpino Club Home Page


Back to Home Page OR email Mr. Vallejo