Begin the dialog with the students with a question or a curious fact regarding what is going to be covered with the animation.
Did you ever imagine that in a spider web, certain vibrations are generated, and that these can represent a Simple Harmonic Motion (SHM)? Show an animation in which the student observes a natural phenomenon showing vibrations, which describe Simple Harmonic Motion. The objective is that the students relate events of daily life so they become interested in the topic and want to continue exploring this guide. To do so, something interesting is illustrated: how spiders weave their webs for shelter as well as hunting and protection.