Teachers able to see how many people make their assginments

I had an idea as I was writing a new lesson, because I wondered how many students are still making the assignments, since we're in year 5, and I almost only see 1st year and 2nd year assignments which I need to check out.

So I was wondering, can you make a function where teachers can see how many students submitted work for the individual assignments? To take it easy on the server, this can be reset with the start of the new schoolyear. But I am wondering how many students are making my assignments.