I am interested in this idea. My school is currently running interdisciplinary PBL (math/sci and SS/ELA) during distance learning. We have been struggling to get students to collaborate during this process and am interested in the ability of this to help. I wonder though, can teachers add in mini-lessons and their own background building, instead of leaving the research to students? At the middle level, students are not yet well versed in research and still need guidance.