An important goal of science teaching is to help students understand the “nature of science”—what science is and how science works. The nature of science addresses the importance of creativity and imagination in scientific work; how scientists invent explanations for phenomena; the difference between observation and inference; how scientific ideas are subject to change; and how culture and society influence science. By focusing on not just what we know but how we know, teachers are providing students with a robust view of science. This article discusses how to help students understand the nature of science.