One way to emphasize students' strengths when reasoning verbally is through number talks. During a number talk, a teacher facilitates a 5- to 15-minute conversation during which students have the opportunity to engage in mental mathematics and verbally explain and justify their reasoning regarding how they make sense of numerical computations. Thoughtfully planned number talks allow for students to actively listen as they engage in rich mathematical discourse that interweaves a procedure with the conceptual understanding that undergirds it. This article discusses the authors' enactment of number talks to support students' development of their mathematical reasoning. They begin with purposeful planning that centers their learning objectives and share their practice of establishing norms in the class. They then examine how the series of number talks were enacted and include episodes highlighting student and teacher discourse. Last, they reflect on the series of number talks and convey their takeaways and final thoughts.