Understanding the nature of science is even more important than mastering its details, says Alan Leshner, Chief Executive Officer of the American Association for the Advancement of Science, in an interview with Educational Leadership. In this article, Leshner discusses the controversy about teaching evolution, and he asserts that demands to include "intelligent design" in high school science classrooms are based on flawed understanding of "what is and isn't science." Tensions between science and society, he suggests, may be increasing because scientific advances in many fields are beginning to encroach on issues of core human values. Leshner also emphasizes the importance of showing students the excitement and fun of science by getting them involved in scientific problem-solving as early as possible. His most important piece of advice for K-12 educators: "Make sure that whatever science content you're teaching, you are also teaching about the scientific enterprise--its methods, limits, benefits, perils, and pitfalls."