The purpose of this study was to determine the impact and utilization of a STEM enrichment program (hereafter referred to as The Program). The Program consisted of two parts. First an educator resource center provided free educational materials throughout The Program's home state. The second part of The Program was a network of education specialists who provided professional development for teachers, modeled lessons with students, and provided presentations for the general public. The problem addressed by this study was a lack of knowledge regarding the impact of The Program. The Program's director requested a utilization-focused program evaluation to answer thirteen questions. Questions covered Program impact for five areas: overall impact on teachers, overall impact on students, overall impact of materials, overall impact of Program personnel, and overall impact on STEM education. A mixed-methods case study was designed to gather data. Quantitative data included Program archival data regarding the number of contacts and a survey distributed to teachers who had used The Program's services on at least one occasion. Qualitative data included written comments gathered from the teacher surveys, seven teacher focus groups, and four Program personnel interviews. Data found an overall positive Program impact in all five areas. Both quantitative and qualitative data showed favorable perceptions by teachers and Program personnel. It is not known if data from this case study can be generalized to other STEM enrichment programs. Future research might include a study to determine if The Program's model could be used to generate new STEM enrichment programs. [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.]