even middle school and high school kids (apart from maybe the most mature juniors and seniors) will not learn anything online. This is an educational disaster in a country that has already been damaged because of lack of education.
I'm not saying it is as good as teaching in person, but having experience teaching middle school students live last school year from March to June, the kids learned something. In my math classes, on average, I finished the year about two weeks behind. Not ideal, but not as terrible as you might think.
The key though, is being available to teach online live, interact with the students, take questions, have discussions with the students and provide feedback both to their daily work but also their assessments. Thankfully, my school did that right away after Spring Break and we'll be ready to go back online whenever that happens. I saved a lot of time and effort conferencing with my students verbally, displaying their work on my screen than writing a bunch of comments that most will be unread. But this was only possible due to my small class sizes. It would have been impossible with 25 per class.
Anyways, first day for teachers is today and it'll be my first time in school since March. I can't lie, I'm incredibly anxious and it's hard to have even an hour not thinking about it, but once the kids start coming it'll feel better to get the ball rolling, even though I have no idea how it'll look.