Related story: Tragedy in Connecticut: Deady Shooting At Elementary School
In the Sacramento area, teachers and school staff were more vigilant because of the school shootings in Connecticut. But no school districts reported ordering any increased security or patrols.
Elizabeth Graswich with the Elk Grove School District says its schools did send home a letter with students. "Letting parents know that we do have protocols in place and safety measures in place to address crisis situations including an active shooter scenario," she said.
In the past five years, the Elk Grove School District has held two training events with local or state law enforcement to practice response to emergencies on campus.
Other Sacramento-area districts say counselors were available throughout the day for any student who wanted to talk.
Meanwhile, various California elected officials have issued statements about this morning's elementary school murders in Newtown, Conn.
Governor Jerry Brown's statement was brief. He said: "We all mourn the heartbreaking loss of those killed at Sandy Hook Elementary. We pray for their families and loved ones."
Lieutenant Governor Gavin Newsome's reaction was much longer, calling for a discussion not only of gun laws, but of mental health policy in America.
Other statements of regret came from Superintendent of Public Instruction Tom Torlakson, and from various members of the California Congressional delegation and the State Legislature.