This is a follow-up study of a study (Kim, 2022) that conducted a theoretical examination of instruction-based art. Preservice elementary teachers may feel unfamiliar with contemporary art because they do not specialize only in art education. However, the discussion of contemporary art in the elementary curriculum is moving from whether it is necessary to what the specific teaching methods are. Thus, in this study, I conducted an action research study with 20 preservice elementary teachers. The research participants explored contemporary artworks, created instructions, and carried them out. I collected reflection portfolios and qualitatively analyzed them utilizing a theme-based approach. As a result, the preservice teachers formed new perspectives on art lessons, improved their understanding of contemporary art by doing, and strengthened their competencies in art pedagogy. The researcher also reflected on the process.