Science· Nijmegen
Klein, kleiner, kleinst: de bouwstenen van alles om ons heen | Universiteit van Beuningen
This appears to be a German language lesson on the degrees of comparison (Steigerungsformen) of the adjective "klein": the positive form *klein* (small), the comparative *kleiner* (smaller), and the superlative *am kleinsten/der kleinste* (smallest). The event likely teaches how to form and use these comparative and superlative forms in German sentences.