Ernst Thälmann Pioneer Organisation session
An Ernst Thälmann Pioneer Organisation session (Pioniernachmittag) was a regular gathering of members of the Ernst Thälmann Pioneer Organisation in the GDR. The session, held on Wednesday afternoons, was arranged by either the class teacher (form tutor) or an adult volunteer for all form pioneers. In 1989, 98% of schoolchildren in the GDR were members of the Ernst Thälmann Pioneer Organisation, making these regular afternoons an integral part of extracurricular school life.
Source: Wikipedia — Ernst Thälmann Pioneer Organisation session (CC BY-SA 4.0)