Set of pictograms free to download and print out, to illustrate the life cycle of materials in a playful way.
https://ziel13.ws.io-flow.de/ (Leg den Weg)
Remark: You’ll find more downloadable stuff here: “Bauunterlagen für die Dämmstoffbar” translates to “Construction documents for the Insulation Bar”, a model scale display of various insulation materials (see pic to your right); whereas “Bauunterlagen für das Praxis-Lehrmodell „Strohbau“” gives you the construction documents for building a model to practice straw bale infill, as shown in the left pic. All documentation is German only.