Teachers report five identified groupings of work related stressors cause their jobs to be stressful. Teacher stress has negative effects on teachers personally, professionally, and on the students they teach. Research has shown participation in yoga classes may reduce the negative effects of stress in many populations. This mixed methods study examined the effect of participation in yoga classes on the perceived stress of elementary school teachers. Ten elementary school teachers participated in weekly yoga classes; teachers completed a questionnaire prior to taking part in the yoga and again at the end of the 10-class yoga session. Eight of the yoga participants were interviewed following the yoga classes. Quantitative findings showed among participants, there were consistent decreases in perceived stress; however, not all of the decreases were statistically significant. Results from analyzing the interviews showed that, without exception, teachers found participating in the yoga classes improved their lives physically, mentally, or emotionally. These results indicate that there may be benefits to participating in (or providing) a workplace-based yoga class to help reduce teacher stress. Based on these findings, district administrators should consider providing no cost yoga classes to teachers whom they employ, as well as providing information to teachers regarding the benefits of yoga as a stress management tool. [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.]