This is something I am struggling with, especially as we reopened 06/15. What grade do you teach?
My school also is focused on collaboration and inquiry. We do encourage face masks for the kids, but as my students are under the age of 9, which is the required age in NV, they are not required to wear them. Many do and teachers, of course, live in them. In my classroom, the 6 foot rule isn't going to work; but I do encourage space between people
What I did initally was create workboxes with the same tools and materials. Each student works with their own resoruces, but shares with the class, whoc omments and asks questions. I acted as recorder, and created a group document (which is a typcial task). The students have done well with the work boxes; now I am trying multiple bins of materials, reminding them that if they touch it, they have to use it or give it to me to clean (lids, skewers, sticks, straws as we wotk with wheels and axels; two have made rovers so far). So far, so good.