kritttavler
Kritttavler, often referred to as chalkboards, are a writing surface typically made of slate or a similar material. They are commonly used in educational settings, such as classrooms, and also in offices and public spaces for displays and announcements. The surface is designed to be written on with chalk and then easily erased, allowing for repeated use.
The traditional kritttavle is a large, dark-colored panel, usually black or dark green, mounted on a wall
Modern alternatives to the traditional kritttavle exist, including whiteboards that use markers and digital interactive whiteboards.