I think the years, as you described them, are correct for England and Wales. I'm not sure about iIeland, but I think it's different in Scotland too x

http://www.deni.gov.uk/index/80-curriculum-and-assessment/80-programmes-of-study.htm

The info I posted below came from an irish eduction site.  Can anyone tell me the Irish structure for school  (uk has reception 4-5, year 1 5-6) etc.

thanks

You were right in the first place.  My DD1 is 7 and is just coming to the end of Year 2 and she recently took her Key Stage 1 SATs.  When she starts Year 3 in September she will move to Key Stage 2 which ends at Year 6.  Key Stage 3 is from Year 7 (first at secondary school) until end of Year 9.  Key Stage 4 is from Year 10.

can someone please remind me of which years the children move into these levels

I thought Year 3 was KS2, and KS3 was the start of high school,  but found some info on a site that suggests differently

Key Stage 1 - Primary 1-4  (school years 1-4)
Key Stage 3 - Form 1-3     (school years 8-10)
Key Stage 4 - Form 4-5     (school years 11-12)
Key Stage 2 - Primary 5-7  (school years 5-7)

I would appreciate clarification from the teachers on here.

Thank you.

Heidih