Group work in ArcGIS online

[Mark_Rice_]

I want to do an urban historical mapping project with my students, using polygons to represent buildings and building usage on sketch layers to show change over time on a stretch of a downtown street. Is there a way on ArcGIS online to have students work concurrently in different layers on the same map?

I tried to have students work concurrently on a single layer but that didn't work because any time someone saved the layer it erased some of the polygons..

I also don't think that ArcGIS online allows for exporting layers from different maps onto a single collaborative map (does it?).

[RussRoberts]

You will need to use a hosted feature layer. The sketch layer is stored within the map so it would require the map to be saved after each time an sketched feature is created. Depending on when a student opens the map and clicks save this could overwrite changes because the maps could be in different states when the last save is in. With a feature layer you do not require to save the map to persist the change.

[Mark_Rice_]

Awesome! Thanks for your help.