The purpose of this action research study will focus on incorporating physical activity before math into a Kindergarten classroom, to help improve on-task behavior. The study was conducted over a four-week period in one Kindergarten classroom. Data was collected to determine if physical activity or brain breaks help improve students' on-task behavior during the math mini-lesson. Two weeks consisted of the students not receiving the brain break/physical activity intervention and the next two weeks consisted of implementing the brain break/physical activity intervention. After the four-week trial, students showed increased on-task behavior after completing the brain break/physical activity. The conclusion stated that when the intervention was completed before the math mini-lesson, the students were able to demonstrate more on-task behaviors and less off-task behaviors.