Teachers play an important role in adolescent life. Adolescents face many challenges and must learn how to deal with stress and participate in physical activity to help them reduce the stress they feel. Teachers' perceptions play a significant role in educating their students and what information they provide; knowing what teachers perceive as beneficial is essential in researching whether they allow students to have physical activity and movement lessons in their classrooms as they help educate students. Previous research shows that activity helps adolescents, but no other studies have examined teachers' perceptions of how they help adolescents in southwest Mississippi or other regions. Using the information from a survey of teachers, the researcher ran a t-test to understand teachers' perceptions of physical activity. Data collected was used to see teachers' belief in activity in students and if they believed it helped with stress. The results show that most teachers are neutral on the subject. Physical education/health/driver education teachers had the highest belief score of all the different teachers surveyed at 4.3, 4.0, and 3.6 for public school and 4.2, 3.9, and 3.5 for private school teachers. There were four research questions; one through three had neutral responses, with 3.3 to 4.3 as the average for questions 2 and 3, but question one was the lowest, with 2.3 to 3.6. The responses are skewed due to the limited number of responses from each group, especially private school teachers. Results from this study are still a good starting point for adding classroom activity and future research. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]