eacher professional partnerships (TPPs) are formal entities, organized under law (partnerships, cooperatives, limited-liability corporations, etc.), that are formed and owned by teachers to provide educational services. TPPs may enter into contracts to manage entire schools, a portion of a school or to provide some other educational service. Teachers are in charge and they manage or arrange for the management of the schools and/or services provided. The school district is not managing the school; nor is a district-appointed single leader in charge (e.g. a principal).