Classroom-Based Research Experiences to Support Underserved STEM Student Success: From Introductory Inquiry to Optogenetics in the Embryonic Chicken.

: In order to help overcome barriers to success for undergraduate STEM students from disadvantaged backgrounds, we developed two classroom-based research experiences (REs), Connecting Life (CL) and the Summer Research Institute (SRI). These REs were implemented over a two-year period (2014-2015) for regional community college students as part of the Southern Illinois Bridges to the Baccalaureate (SI Bridges) program. CL and SRI, broadly centered in biomedical sciences research, are designed to be offered in tandem. CL utilizes a guided inquiry approach with microscopy work-stations in experimental cell biology to experientially introduce research while building skills and confidence. CL serves as the gateway experience for the SRI, an intensive summer RE in which scholars engage in authentic research using modern technologies including optogenetics. We piloted the REs in year 1 (9 scholars) and made refinements in year 2 (10 scholars). Participants ("Bridges scholars") were enrolled full-time at one of two regional, rural community colleges, and came on-site to Southern Illinois University at Carbondale (SIUC) for the paid REs. Here we report the development, design and implementation of CL and the SRI, and report improved STEM research-related attitudes and aptitudes as a result of these experiences. Our findings suggest that guided inquiry with increasingly technical authentic research projects in a classroom-based and supportive learning community-style setting is a positive model for the transformation of underserved community college students into confident, motivated scientists with research-ready skills, and is likely translatable to other research novices.