Journal ArticleWhat a Difference in Pressure Makes! A Framework Describing Undergraduate Students’ Reasoning about Bulk Flow Down Pressure GradientsDoherty, Jennifer H.; Scott, Emily E.; Cerchiara, Jack A.; Jescovitch, Lauren N.; McFarland, Jenny L.; Haudek, Kevin C.; Wenderoth, Mary PatGardner, StephanieThis paper details the development of the first reasoning framework to describe how students’ reasoning about biological bulk flow pressure gradients develop toward scientific, mechanistic reasoning.CBE-Life Sciences Education2023-06-0110487490CBE—Life Sciences Education2221931-7913https://doi.org/10.1187/cbe.20-01-00031660643National Science Foundation