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Welcome, Biology Students!

This is Mr. Vallejo's web page for biology 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 (January 2002) 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 1960, as of September 2003.  Nationwide, there are fewer than 24,000 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 eighteen 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 and the California State University, Northridge (CSUN) Single Subject University Intern Program.  He is on the faculty at Chatsworth Senior High School, where he has taught a myriad of classes, including Advanced Placement Environmental Science, biology (honors, college-preparatory, and sheltered), marine biology, integrated science, and advanced physical science.


To continue your journey through The Biology Portal, click below:


Course Outline: Biology A

State Biology Content Standards

Assignment Sheet


Student Grades: Period 4

Student Grades: Period 6



Lecture Notes


This Week’s Class Activities and Homework


Extra Credit Projects:

Option 1 available only with parental permission form submitted BEFORE research is started.

Easter/Passover Extra Credit Herbarium Project


To view student work, please click here!


Other Useful Resources:

The Online Biology Textbook

Chatsworth High School Home Page

Library Resources

Back to Home Page OR email Mr. Vallejo