I am a nanny who has recently gone into a nursery setting between jobs and had forgotten how much nursery workers have to do! I hardly see the staff/children interact because the staff are doing their best to get everything done.
In the course of a 10 hour day
Carry out and write risk assesments 3 X a day
Make and serve breakfast, then sweep up and do the washing up 14 babies worth of cups/plates
14 nappies X 4 times a day
Write diaries for 14 children, updating during the day
Serve lunch, sweep up and wash up all plates; heating up food that some children have brought [as and when]
Serve lunch, sweep up and wash up all plates
At the end of the day after the children have gone [anytime up until 6pm] the staff then have to stay [unpaid] to tidy/sort the room; wipe down sides, hoover, bag up rubbish etc
Once a week the staff also have to deepclean and scub the room; and all toys.
These are all done while the children are in the room up and playing. Take 1 staff doing nappies, 1 staff updating diaries, 1 staff clearing up breakfast/washing up and 1 staff settling a baby to sleep in the sleep room and you have 1 member of staff supervising 13 babies under 2. The staff are all in ratio as technically "within" the room - even if 1 is in the milk kitchen off the room and another is in the sleep room.