The purpose of this action research study was to determine the relationship between physical activity breaks and their impact on student achievement and behavior. The participants included 30, eleven and twelve-year-old students, who attended a public school in the north suburbs of MN. Students participated in 5-10-minute physical active breaks in health class during a 6-week trial period. Data was collected through the use of summative assessments, student surveys, and an observational behavior chart. The study found that implementing physical activity breaks in the classroom can have a positive impact on students’ academic achievement and behavior. The researcher recommends further studies be conducted with regards to varying ages, gender, content area, and economic status, to further validate the results.