Teachers use social-emotional learning (SEL) practices to help teach students strategies to self-regulate inside the classroom. The practice of mindfulness is an SEL strategy that can be implemented through the use of a classroom calm-down corner to help classroom behaviors. This action research studied the impact of a calm down corner in the primary classroom. Participants included the researcher's class of 23 second-grade students. Students participated in daily mini-lessons for strategies to use in the calm down corner. Data was collected on student behavior and usage of the calm down corner through observations. Negative student behaviors decreased as a result of the implementation of the classroom calm down corner.