Most high school students are accustomed to learning in two ways: by listening to the teacher and by reading books and other texts. These familiar ways of learning work for them so long as their teachers demand only that they grasp and remember the given content. However, if the goal is to help students learn in more intellectually sophisticated ways, then teaching and learning will have to look quite different. In this paper, Magdalene Lampert provides a close, detailed description of “deeper teaching,” referring to the kinds of instructional strategies and moment-by-moment teaching decisions that enable students to learn deeply. She concludes by describing the kinds of early-career guidance and supports that teachers will need in order to understand what deeper teaching entails and put it into practice.