Education consultant Samantha Bennett describes an inquiry unit in which 2nd graders practice the habits of lepidopterists to learn about butterflies and to create a literary nonfiction story that incorporated their butterfly research. She takes the reader through the teacher's process of planning this unit, including choosing the "4 T's" of topics, tasks, texts, and learning targets. The article shows how the teacher planned what students would do during class time and what products they would make to show they'd mastered "supporting targets" along the way to the long-term learning targets. Bennett also describes how, throughout the unit, this teacher used what she learned while looking at student work to inform her continuing instruction.