It Is not idiomatic "to give" a class. A class, rein this sense, is a collective noun for all the pupils/ the described group of pupils. "Ur class went to the zoo." By extension, a "thing that makes you go hmm" is something or someone which inspires that state of https://youtu.be/T0zWXvhEQwo?si=wNc6ihu97ShtIl7u