Average is 1A/1B. Although 2C is considered 'normal' as is 1C (depends on the birth date of child as older children in the same year group can be nearly a year older than their younger peers).
Writing: Being able to write half a page of A4 (biggish writing) with evidence of some punctuation. Mainly simple sentences but can use 'and' and may use other connectives such as 'when', 'then', 'because'. May have an adjective in there. Mainly flows. Can be read without the child deciphering it. Words spelt phonetically correct. Some HFWs spelt accurately.
Reading: Able to read about 3/4 sentences per page. It's difficult to explain this but if your child is on a book (book band blue, green or orange) then that is 'about right'. Yellow is slightly below but in our school considered 'Year One'. Most of my summer borns are here.
Maths: Can add and subtract single digit numbers mentally. Use a labelled number line to add/subtract 'bigger numbers'. Can read and write 2-digit numbers, order numbers, read number sentences, begin to identify doubles and halves, odds and evens and number buddies to ten. recognise common 2D and 3D shapes and describe their properties in simple detail. Tell the time to the hour and half hour. Know and use simple positional language such as right, left, up, down, turn, etc. Know which tools to use to measure and some may be able to read standard units, especially on a ruler. Find 1/2 and 1/4 of a shape. Can explain a simple method and give a reason.
We don't give levels on Y1 reports but if parents want to know, we're happy to tell them. We don't do this as we've found that parents still don't understand what it means. Averages are: (This can differ by 1 sub level depending on the LEA's advice)
YR Point 6 on the profile
Y1 1b/1c
Y2 2c/2b (level 3 is seen as high achieving and child MUST be secure 3 i.e 3B)
Y3 2a/3c
Y4 3c/3b
Y5 3a/4c
Y6 4b/4a (level 5 is seen as high achieving)