This two-part talk will describe the scope of work and emergent findings of two ongoing National Science Foundation Cultivating Cultures of Ethical STEM (CCESTEM) projects. Each project seeks to provide strategies for the design, assessment, and research of learners’ ethical formation. The first project, an Institutional Transformation CCESTEM project (Award #1737157), seeks to utilize Faculty Learning Communities to refine instructional approaches to the Integrated Community-Engaged Learning and Ethical Reflection (I-CELER) framework among faculty in two departments at Indiana University Purdue University – Indianapolis (IUPUI). The second project, a Standard Research CCESTEM project (Award #1737303), seeks to explore variations in ways of experience ethics among engineering practitioners in the health products industry. Taken together, these projects provide insights for the design of learning environments to foster STEM students’ and practitioners’ ethical dispositions and reasoning skills.