I'm somewhat sympathetic, too, but on the other hand, there is probably ONE other kid (and perhaps more than one) who can do something other than add single digits in her class. Teachers do a lot of small groups and independent work these days. It's not all..."Okay, class, repeat after me: 2 plus 3 is 5." She could rotate between groups and work on different things, and provide different activities and sheets, etc. And they are told, repeatedly, to differentiate.