Hands-on learning about Cesar Chavez

Fourth-grade students from Andersen Elementary School in Newport Beach learn how to pick and clean romaine lettuce at the Incredible Edible Park in Irvine on Cesar Chavez Day.  (Mark Boster / Los Angeles Times)

Fourth-graders dig up onions that will be donated to Second Harvest Food Bank.  (Mark Boster / Los Angeles Times)

Students from Cal State Fullerton and Newport Beach’s Andersen Elementary School learn about farmworkers as they learn how to pick winter cabbage.  (Mark Boster / Los Angeles Times)

Fourth-grade student Cole Ossenmacher tosses a head of cabbage to a classmate from Andersen Elementary School.  (Mark Boster / Los Angeles Times)

Cal State Fullerton student Sarah Derakhshandeh learns how to clean and pick cabbage with students from Andersen Elementary School at the Incredible Edible Park in Irvine.  (Mark Boster / Los Angeles Times)

All the produce picked at the Cesar Chavez Day event will be donated to Second Harvest Food Bank.  (Mark Boster / Los Angeles Times)

Farm hand Raul Garcia teaches the students how to clean onions.  (Mark Boster / Los Angeles Times)

Christopher Cottrell, a Newport Beach fourth-grader, cleans a head of romaine lettuce.  (Mark Boster / Los Angeles Times)

Fourth-graders J.T. Russell, left, and Ashley Duss run through the cabbage field at the Incredible Edible Park with a crate of freshly picked produce.  (Mark Boster / Los Angeles Times)