Frustration

I graded my kids' math tests tonight, after they spent nearly two brutal hours working on them today, hands raised almost the entire time. It was not pretty. These guys can NOT divide. I'm at a loss as to what to do now. We've been working on division for two weeks. Do I stop everything and re-teach the chapter? Do I move on to fractions? Do I move on and provide lots of extra division practice on the side? I worry that they can't do independent work -- this is true for writing, too. They don't pay attention during the lesson, have no idea what to do when they return to their seats, wave wildly for my help, and wait for me to re-teach the lesson. Twenty times. To twenty different kids. Or they seem to do fine while I am standing there, but as soon as I move away to help someone else, it all falls apart. "Wait, don't leave!" is a near-constant refrain. I feel like whole group work is becoming wasted time, but I can't hold every kid's hand all the time, either. Am I helping them too much? Do they know I will teach it to them again and so they don't need to pay attention the first time? Should I step back and let them struggle through things more? Or are they really just that clueless, so that refusing to repeat myself would only lead to greater failure? It seems like I am working harder than they are -- that's not what teaching should be about. Argh. It's time for Thanksgiving break.