Last year my curiosity collection took the form of a shared Thinglink image where students suggested non-fiction readings, videos, and other texts that coincided with their ongoing exploration of a self-generated question (using the Question Formulation Technique) for each novel we read. You can see an example here: https://www.thinglink.com/scene/576120822666625026
This year I introduced my classes to our curiosity collection on the second day of school. I plan to use Thinglink again, but I encouraged my students to catalog their curiosity early and often. You can see our ongoing collection on Twitter and Instagram using the hashtag #zapfv.
If you’re interested in doing more exploration of curiosity journals as a pedagogy, I suggest reading Geoffrey Sirc’s “Box-Logic:" https://pantherfile.uwm.edu/awysocki/www/445/sirc.pdf
Sirc suggests similar methods of collection for, among other reasons, its “idea of sustained inquiry—for [him] the most crucial part of the academic enterprise.”