Even though K-12 educators must assess student learning and adjust instruction based on learning data, many teachers lack confidence in their ability to assess. Because low confidence levels may be due to inadequate teacher preparation, this study invokes the pivotal SoTL project, Transparency in Learning and Teaching (TILT), as it examines TILT's impact on twelve undergraduate ELA teacher candidates (TCs). The hypothesis was that TILT would not only enhance undergraduate TCs' learning outcomes in an ELA methods course, but also scaffold their early development of assessment literacy. Findings support the hypothesis but indicate that TCs would benefit from additional instruction in assessment design prior to implementing assessments in field placement settings. Findings also point to potential for future SoTL studies across disciplines and in broader contexts to align with trends in higher education, such as high-impact practices and cross-institutional partnerships.