When counting, children start in year 1 by counting to and across 100, forwards and backwards. They begin with 0 or 1 and then move onto counting from any given number. They then move onto counting, reading and writing numbers to 100 in numerals and progress onto counting in multiples of twos, fives and tens.
In year 2, counting becomes more advanced. They are taught to count in steps of 2, 3, and 5 from 0, and in tens from any number, forward and backward. Furthermore, in year 3 students count from 0 in multiples of 4, 8, 50 and 100. They also become confident in finding 10 or 100 more or less than a given number.
Year 4 really sees their KS2 maths skills progress. Now they are able to count in multiples of 6, 7, 9, 25 and 1000 and find 1000 more or less than a given number. They can also count backwards through zero to include negative numbers.
In year 5 learners are getting ready for moving up to year 6 and the challenge of SATs. Here their counting skills develop so that they can count forwards or backwards in steps of powers of 10 for any given number up to 1 000 000 which is pretty impressive if you ask me. They are also able to interpret negative numbers in context, count forwards and backwards with positive and negative whole numbers, including through zero.
At the last year in primary school, learners are getting ready for secondary school maths. Now they are starting to use negative numbers in context, and calculate intervals across zero.
As you can see, over these 6 years students are making massive progress in counting and its a credit to maths teachers who get them up to this level.