* Curriculum development and implementation: Deciding what subjects are taught and how.
* Teacher hiring and training: Recruiting, employing, and supporting educators.
* Budgeting and finance: Managing the district's finances and allocating resources.
* School facilities maintenance: Maintaining and improving school buildings and grounds.
* Transportation: Providing bus services for students.
* Special education services: Providing support for students with disabilities.
Essentially, it's the organization that's in charge of running the public schools in a specific area. The size and structure of a school district can vary widely depending on the population density and other factors.