“…Yet, we argue that these accounts are exactly what are needed in order to better understand aspects of youths' STEM‐related learning (e.g., Bell et al, ; Bricker & Bell, ; Nasir, ; Warren, Ballenger, Ogonowski, Rosebery, & Hudicourt‐Barnes, ), as well as to leverage the details and nuances of these learning pathways in the design of school science related learning environments (e.g., Bang, Medin, Washinawatok, & Chapman, ; Calabrese Barton, ; Rosebery, Warren, Ballenger, & Ogonowski, ; Tzou, Bricker, & Bell, ). Assuming that the science education community considers youths' experiences, interests, cultural practices, and linguistic patterns, for example, as part of their prior knowledge (see Bricker, Reeve, & Bell, in ), and that the field values building on learners' prior knowledge during school science instruction (see Bransford, Brown, & Cocking, ), how do we, as science educators, learn about and characterize youths' STEM‐related trajectories across contexts and timescales so that we can help build better STEM‐related learning bridges?…”