tabletternas
Tabletternas is a term that can refer to several different things, primarily in the context of Swedish culture and history. One common meaning relates to tablets or slates used for writing. Historically, these were often made of slate and used by children in schools for practice in writing and arithmetic before the widespread adoption of paper. These slate tablets were durable and reusable, typically with a wooden frame to prevent breakage. Children would use a slate pencil, often made of chalk or soapstone, to write on the surface. The writing could then be erased with a cloth or sponge.
Another interpretation of "tabletternas" might be in a more modern, colloquial sense, referring to tablet computers.