I have the same questions. First time user here! I made a formative and then did not realize students had choices on how to enter (Clever, Google or as Guest) So, many of my students entered as a guest.
I wonder if on the next formative, they can choose AGAIN , this time to Google so I can see them and sync it to Google Classroom. (my district does not have Formative set up to link to Clever yet)
I wonder also if I get my district to sync to Clever, will I have to make the students do anything to link themselves?