Um, so what do I do when they hatch?

My broody is on 10 eggs in a rubber tub in the house. The chicks are peeping loudly and are due to hatch in the next 48 hours. Just realized that I should probably have an idea of what to do when they hatch. Should I take the chicks and put them in a brooder under heat? Leave them in the tub with mama and the rest of the eggs? FWIW, it's a standard size rubbermaid tub lined with straw, so not a ton of room to run around and stretch out...plus, there's the rest of the eggs. I know when you all hatch in an incubator you don't open it until the hatch is finished....since there's no 'lid' to trap in humidity are they ok to move out? I want mama to raise them, so would it be better to leave them? Slightly freaking out....

 

I've got a spot ready for mama and babies - an enclosed 4 X 8 ground level coop with food, water, and heat (in one corner), ready to receive. My dh wants me to move her now but my fear is that she'll abandon them as well. Should I leave the hatched chicks in the tub with her, or remove them? I just don't know at what point to move any or all of them.....