FRAMINGHAM — A gym teacher at Sandy Hook Elementary School who rushed children into a storage closet during Friday’s shooting rampage had just started working there this fall after 12 years at a Framingham elementary school, officials here said.

Jaclyn Lloyd, 34, and her students survived the shootings in Newtown, Conn., which claimed the lives of 20 children and six of Lloyd’s co-workers in one of the worst mass shootings in US history.