The purpose of this qualitative case study was to examine the effects of the student teaching experience on secondary agricultural education teachers. Eight of the thirteen participants in this study served as a cooperating teacher during the 2012 spring semester for pre-service teachers in agricultural education from a land-grant institution. Three of the participants had served as a cooperating teacher during either the 2010 or 2011 spring semester but had reported a negative student teaching experience with their last student teacher. Two of the participants had served as pilot interviews for the study, but they were added as participants during the analysis of the study. The participants provided interviews, opportunities for professional observations, and teaching documents for analysis. Four major themes emerged in the study 1) The professional identities of secondary agricultural education teachers are affected by their membership in the preservice teacher community. 2) Secondary agricultural education teachers volunteer as cooperating teachers to help others and themselves professionally. 3) Secondary agricultural education teachers empower themselves and other members of their communities through their leadership due to their strong sense of political efficacy. 4) The professional practices of agriculture teachers are influenced by their service as a cooperating teacher. [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://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]