They're all great questions. I would also ask about transitions between age groups, and when they occur (if they happen frequently it *can* be an indicator of high turnover)

The other advice I would offer is to make sure you know your product. If asking about the ratios, make sure you know what the minimum legal ratios are. Ask about what qualifications the staff have; not just the team leaders, but other staff too.

Discipline is quite an outdated term; most centres would have something more like a behaviour guidance policy. This is just FYI - you might like to go in armed with this knowledge.

Ask them to explain their payments system, as it can vary. Some places do a lot of internet banking, others have eftpos on site, some operate only in cash and cheques. It might not make a difference, but it's good to know.

Call before you go. I really get annoyed at drop-ins who come at a bad time (like when a kid has split his head open, or the roof is leaking, or a baby is screaming and the nursery need extra help) then are unimpressed when I tellt hem to come back later. Save yourself the hassle, and call ahead. There are times in my day when I've got extra staff and it's easier for me to be available.

Rather than ask if they always pick up crying babies, ask "So what do you do when 4 of them are crying at once?" or "Are there any children who just cry all day? What do you do with them?" Firstly because it will give you mroe information, and also, it might just give you some ideas you hadn't thought of (But then again, if you're on BB, that might be redundant! )

Good luck!