Assessing computational thinking in making has proven a challenge, in part because student creations are innately diverse and unique. In this paper we consider portfolios as a way to document and assess students’ learning processes in the context of designing electronic textile (e-textile) projects. We describe students’ use of portfolios at the end of an introductory computing course, Exploring Computer Science, during which 33 students created a series of electronic textile (e-textile) projects as part of a new curricular unit. Our analysis not only illuminates the capability of portfolios

Much attention in constructionism has focused on the design of learning tools and support for students building artifacts. Far less attention has been placed on reflection and reflective artifacts that let students consider their own learning. In this paper we share an analysis of portfolios in which high school students reflected on the design of their electronic textile projects during an eight-week curricular unit in an Exploring Computer Science class, an introductory computing course for high school (secondary) students in the United States. We examine portfolios as sites of student self