Going4potty, it is confusing!
In the state system it works as follows:
A child starts Year 1 in the September after his or her 5th birthday. This is the start of compulsory schooling. In practice, most children start school in Reception, which is the year following their 4th birthday (ie. the year in which they will turn 5). Some schools will start all reception-age children in September, others phase them in so children born Sept-Feb will start in September, and children born Mar-Aug will start the following January. But they will all end up in the same year group and will normally all move up to Y1 at the same time, though younger children may have only had two terms in Reception instead of 3.
Some (state) schools will have attached nursery classes, which take children the September or January after their 3rd birthday. In most schools nursery will be part-time, although one-form entry schools may go fulltime from the start. These classes will be partly integrated into the school, ie. they may go to school assemblies and use the same lunch room. They will generally have a separate building or wing for their classrooms and separate play areas.
These school nursery classes should not be confused with day nurseries (which provide childcare), preschool (playgroup-type arrangements) or private nursery schools (which may take children before they are 3, but will generally be term-time only). Private schools also sometimes start their nursery classes earlier than 3.
hth
roisin, didn't mean to take words out of your mouth! Good summer?