There are as many ways to use monarchs in the classroom as there are teachers interested in giving it a try. Monarchs offer a compelling introduction to insect life cycles, the intricacies ecosystems and food webs, and the balance of nature. They can be the focus of a profound inquiry science project, complete with math and graphing skills, which can connect students with an international community of citizen scientists. They can also be an exciting journaling theme, a catalyst for understanding geography and human culture, a dynamic study in ethics and a wonderful subject for art and design. This text is intended as a starting point for teachers interested in using monarchs in their classrooms. It introduces concepts and information that will be useful as you design your own monarch lessons.