Dartford Grammar School is 906 in the Financial Times league table for 2012http://rankings.ft.com/secondary-school ... 3221|23271
I personally prefer this league table because it compares like with like. Other league tables aren't comparable because the schools at which children take on average 13 GCSEs figure higher than schools that take fewer. Personally I am looking for quality not quantity when it comes to GCSE results, but different people want different things.
The DFES website is also really useful. This tells me the average GCSE score for high attainers at Dartford Grammar School, per GCSE is an A. This is excellent. I used the data on the DFES website to compare schools more accurately as I am not interested in schools merely topping the league tables because the children take 13 GCSEs.http://www.education.gov.uk/cgi-bin/sch ... urn=136359