If it helps you can tell him that in my view as a former teacher (sixth form) SATS results were completely irrelevant. How he gets on at secondary school will be based on how he works in class. At most SATS results might be used as a check, e.g why’s Joe doing so badly when he got such good SATS...
If we shy away from making the link between standard of living and politics then we risk missing the fact that who we vote for is important and does have a significant impact on the lives of millions of people in this country.
11 years old is far too young to be worried about exams. SATS should be scrapped in my opinion. They only really exist as a way to measure schools’ performances and somehow an environment has developed where 11 year olds feel under pressure.