Year, P, and grade?

Question

I'm a bit confused on the England system when I try to understand the English levels on reading, writing etc.Oxford (https://cdn.oxfordowl.co.uk/2017/02/20/14/11/00/314/px_orcs.pdf), is using **Year** and **P**, for example, Year 2/P3 is around Oxford Reading Tree level 7 - 11. Does P3 means the 3rd grade of Primary school? What does Year mean then?Scholastic is using **Grade**, for example, Harry Potter, according to https://www.scholastic.com/teachers/bookwizard/#cart/cleanup , is for Grade 4-6. Is this Grade 4-6 same as P4-P6? or Year 4-6?

Answer 1

I believe that P3 refers to 3rd grade primary as you said. I think that 'year' is in relation to the beginning of formal English learning - starting with 'reception' then moving on to 1, 2, 3, etc. Why they don't just start with 1 and drop 'reception' is beyond me. Maybe it's something akin to calling the first floor of a building the 'ground floor'.