This article provides an overview of Just-in-Time Teaching (JiTT) pedagogy and the development, implementation, and assessment of JiTT pedagogy in teaching introductory, college-level economics courses. Broadly speaking, JiTT techniques blend structured, out-of-class, web-based exercises with related classroom activities that promote active student learning. The two components work together to promote a feedback loop that encourages outside-of-class preparation by students, provides prompt feedback on students' conceptual understanding of course material, and informs just-in-time modifications of class activities and discussion. The benefits of the JiTT approach can be summarized as follows: (a) Students are more likely to be prepared for class, (b) the use of student responses in class creates a positive feedback loop that promotes further learning, (c) JiTT exercises make instructors more aware of student thinking processes, and (d) JiTT pedagogy increases students' cognitive learning.