This study was conducted to document how members of the Design Challenges team currently assist visitors as they engage in engineering design activities as a way of informing the practices of informal technology education at the Museum of Science about the types of scaffolds and supports visitors need when engaging in future engineering design labs in exhibitions. To collect data for this study, educators from the Design Challenges team were observed as they helped visitors complete the Solar Cars activity in Investigate! The Solar Cars activity was not designed as an engineering design lab