Some teachers like to use hand symbols with their class and swear that they’re one of the best management tools they’ve got. (I’m not one of them, because I always forget what the symbols mean). Here were the signs for the symbols a 2nd grade teacher used, and her class did fairly well with them. They’re posted on the wall for students to refer to if they forget…
Squarehead Teachers 
The use of the fingerspelled letter i for “I have a question” is unfortunate. A Q would make more sense. Or, the actual ASL sign for “Question” isn’t difficult to learn.
You have a good point!