The Albert E. Kagel Elementary School, 1210 West Mineral St., near Clarke Square, will have a new principal next fall. Nancy Martinez will replace the outgoing principal, Dr. Hector Perez-LaBoy. Before her selection to lead the school, Martinez served as an assistant principal at the Milwaukee School of Languages, 8400 W. Burleigh St.

New principals will be taking the reins at 39 Milwaukee Public Schools next fall; 30 are new to the role, while nine current MPS principals received new school assignments. More than 22 percent of MPS schools are changing leaders, due to an unusual number of retirements. Nine principals retired from MPS schools in 2009, and six retired in 2010.