Classroom management has always been a challenge for most teachers. But what if student concentration could be augmented with several calming breaths and a chance to stretch desk-cramped young bodies? That is the question a growing number of schools are exploring by introducing yoga classes and practices into their buildings. And a limited--but growing--body of research indicates yoga for kids may be an effective strategy for proactively managing classroom behavior and efficiently boosting student learning and performance. Tara Guber, a yoga instructor with more than 25 years of experience, argues that a yoga practice--even once a week--helps students feel safe, show greater acceptance of others' differences, and demonstrate better conflict management among themselves. All that adds up to more time and energy for teaching and learning.