Hundreds of elementary students cheered the bodily functions of a 1,200-pound Holstein on Thursday.</p><p>R.M. Miano Elementary School pupils oohed and aahed and squealed and laughed as they learned how hay becomes milk during a presentation from the Dairy Council of California's Mobile Dairy Classroom. </p><p>"Cows do not have any top front teeth," Kimberlee Youman, Mobile Dairy instructor, told students. "All cows are like that; they're born like that. They're never going to grow in."</p><p>Youman pointed out the cow's basic anatomy and helped the students compare it to their own hips, ribs, stomach and teeth, among other parts.</p><p>The 3-year-old Winton-based cow named Milky Way ate hay throughout the presentation and dripped milk from her udder.</p><p>Youman said Milky Way had not yet been milked for the day.</p><p>The mobile classroom, which is a livestock trailer, is part of an 80-year-old program to educate students on milk and dairy foods.</p><p>More than 400,000 children see one of the six mobile classrooms all over the state, according to the dairy council.</p><p>Children also got a lesson in the proper form for milking a cow by hand and with an automated milking claw.</p><p>Principal Antonio Rosales said he asked the Dairy Council to make the presentation, which ties into some of the nutritional science his students learn during the year.</p><p>"We do live in an agricultural community," Rosales said. "It's great exposure for our children."</p><p>The Mobile Dairy Classroom is funded by California dairy producers and processors.</p><p><i>Enterprise reporter Thaddeus Miller can be reached at (209) 388-6562 or by email at tmiller@losbanosenterprise.com.</i>