Kristin Goldstein, assistant principal at Ox Ridge Elementary School, has resigned from her position and will lead Cranbury Elementary School in Norwalk, according to interim Superintendent of Schools Lynne Pierson.

Goldstein's resignation is effective Nov. 21, Pierson said at the Board of Education meeting Tuesday.

"I am looking forward to the challenge that this new role brings, but I realize that I will be leaving a wonderful district and school behind me," Goldstein wrote in her Oct. 8 resignation letter, which was provided to the Darien News. "It has prepared me well for what lies ahead."

Goldstein has worked in Darien since 2010, when she was hired as the assistant principal at Ox Ridge. Luke Forshaw had been promoted from the assistant principal position to principal.

Before that, she worked in the Greenwich school district.

Goldstein is a Norwalk resident, according to a release from the Norwalk public schools.

Also, Elizabeth Zawatski, a third-grade teacher at Ox Ridge Elementary School, resigned, according to interim Director of Human Resources Michael Cicchetti. She accepted a position with another school district.

During the past year, there have been several administrative resignations from the local school district. Among the most prominent were assistant directors of special education Liz Wesolowski and Carleen Wood, who left for new school districts in January and July, respectively.

Adam Carley, the assistant principal of Holmes Elementary School, resigned in March to work with REACH Ascension -- Resiliency Empathy Acceptance Confidence Hope -- an organization that works with underprivileged children in Newtown and plans to expand into the Greater Danbury area. Alex Harvey recently was hired to fill that job at Holmes.

In May, Royle Elementary School Principal Keith Margolus resigned to take a job in Ridgefield. John Grasso, a Greenwich educator, was hired as an interim principal.

The Royle job opening was posted on the district's website Oct. 15.

"If the opportunity presents itself in the future, I would be happy to work with the Darien community again," Goldstein wrote.

mspicer@bcnnew.com; 203-330-6583; @Meg_DarienNews