Superintendent Dr. Jerry Weast supports the plan to build the Community Montessori Public Charter School in Kensington, Md.
The school would serve pre-kindergarten through third-grade students, with a focus on social services. There are no public charter schools in Montgomery County, in part because the county has very strong traditional public schools, which are typically ranked about the best in the nation.
The nonprofit group seeking to start the school had their proposal rejected by the board in 2010.
Weast's support of the charter school proposal will be one his last moves as superintendent, as he is retiring. His last day on the job will be Thursday. Dr. Joshua P. Starr has been selected fill his position.