It would be completely daft to put together an academic plan for a child based on where they were at the age 6/7!
In my own experience, ds was rated as average for maths at old school. Just found out new school rates her as above average and she just got a 2a and has achieved this on practice SATs. Old school had grouped her as average an targeted her for 2b, but were skeptical she would achieve because they said she had concentration problems. New schools sees no concentration issues, but says she uses distraction techniques when things are a little challenging. It isn't an issue for a her new teacher at all.
I think it is impossible for anyone to assess a child this young perfectly. So why do Offsted and schools use the results to determine who to put into boosters or put in for a Level 5,6 by KS2. I know they need some system of measuring the value add, but the way students are streamed and targeted
so early seems completely lacking in understanding of child development. Am I the only one who would moan about this?