DC has complex SEN and learning disabilities.
We had a meeting with school regarding progress recently and have been told DC is behind in numeracy & literacy. Not totally unexpected. However, the meeting was not with the CT but the SENCO (CT just left school du to ill health and DC has changing supply teachers until end of term). I asked SENCO what level of attainment would be expected of a typical child and SENCO did not know and referred me to some websites 
Anyways - DC knows all the sounds and a lot of blends as well (ee, oo, air, gig etc) and can write all lower case letters and his name + surname but is not writing anything else yet. DC can blend words such as sheep, light, park etc but finds segmenting difficult; he is reading pink books and is starting on red band books.
He know numbers until 30, can add up until 10 using his fingers
, order numbers and has a good understanding of quantities up to 5/6.
We are happy with the progress given his complex SN but I wonder if this is really thatfar behind.