Efforts to unionize teaching staffs at independent charter schools have spread from Cape Cod to Western Massachusetts, creating what could potentially be a new labor movement.

Faculty and staff at Pioneer Valley Performing Arts Charter School in South Hadley received approval for a union from the state Department of Labor on Feb. 8, enabling them to negotiate a contract with school administration.

They will be represented by Local 2322 of the United Automobile, Aerospace, and Agriculture Implement Workers of America.

Read the full article on the Boston Globe website.