Ruth R. Fletcher has been selected to lead St. Andrew’s Schools beginning next school year.

Fletcher, currently dean of professional programs at Punahou School, succeeds Sandra J. Theunick, who has been head of school since July 2007 and is retiring.

“Dr. Fletcher was selected for her innovative vision for the St. Andrew’s Schools and her passion for celebrating the unique learning needs of girls and boys,” school board chair Dew-Anne Langcaon said in a press release. “Her vision for educating students for the 21st century is compelling. She believes in nurturing global citizens who think critically, collaborate, work for social justice and provide stewardship for our precious Earth.”

Fletcher began her career as an educator and scientist at the University of Delaware, where she taught in the Department of Geology. At Punahou, she was head of the science department and was academy dean, before working with national and international educators and experts as dean of professional programs.