SCHOOL:  Tomales High science and welding teacher William Constanzo (center) initiated grant funding for a science-based vocational agriculture program. Students in his Soil Chemistry class, comprised mostly of sophmores and juniors, are learning practical applications for farming and raising livestock.   David Briggs
On Monday morning, six Tomales High School students in William Costanzo’s Soil Chemistry class sat hunched over their school-bought laptops as they waded through an introductory presentation and brief assignment on the basics of pH measurements. It’s a common classroom scene, save for the unique

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