Primary education begins at age 5 and continues until age 11, comprising key stages one and two under the UK educational system.

Children can commence their education from the term after they turn 4 but for children born between 1 April and 31 August, they usually commence primary education in the September after they turn 5.

Some primary schools are split up into Infant and Junior levels. These are usually separate schools on the same site. The infant age range (Key Stage 1) is from age 5 to 7. The Junior age range (Key Stage 2) is from age 7 to 11.

The year groups at primary school level are:

Year R (Reception) (age 4 – 5)
Year 1 (age 5 – 6)
Year 2 (age 6 – 7) This is the year when SATs testing takes place for Key Stage 1
Year 3 (age 7 – 8)
Year 4 (age 8 – 9)
Year 5 (age 9 – 10)
Year 6 (age 10 – 11) This is the year when SATs testing takes place for Key Stage 2