Activity Report glitches
I require students to be active 5 of 7 days a week, do at least 70 XP, and I record student activity at the end of each week.
Almost every week, when I look at the Duolingo classroom activity report, there are 2 or 3 students that show no or very little activity. They swear they have been active every day, and show me their streak. Their parents also say that they are active and doing the work.
This is very frustrating, and makes Duolingo useless as something that I can track. I have heard that some of this may be because they are logged in to 2 devices, so I tell the kids to make sure they are logged in to only 1 device. It is still happening with several of them, though.