In this introductory article, we contextualize teaching materials (e.g. textbooks, resource packs etc.) as instruments of teaching and learning, and discuss their relevance at different levels of the educational process. Showing some of their basic functions, we emphasize the importance of a reflected use of teaching materials in the classroom. We also discuss their relevance as instruments in teacher education from a critical point of view. In that context, too, a reflected use of teaching materials appears to be important, one which takes teaching methodologies of individual subjects into account.
From Anni Heitzmann, Alois Niggli in the text Lehrmittel - ihre Bedeutung für Bildungsprozesse und die Lehrerbildung