The government class 'Early Years' as the time between birth and the end of the Reception year at school when children have turned five. Foundation Years have published a really good guide that explains what your child should roughly be doing at each stage of their development, along with some ideas to help at home.  

What-to-expect-in-the-EYFS-complete-FINAL-16.09-compressed.pdf (foundationyears.org.uk)

If you would like any more information or to talk about this further then please see your child's class teacher or pop in an see Laura our Head Teacher.