I READ with interest your article on the great improvement in the Key Stage 2 examination results at Gaskell Street School.

The children's maths at this school must be better than your reporter's, who doesn't know the difference between aggregate scores and percentage scores (BEN, December 8).

According to the figures in the Guardian on December 7, Gaskell Street scored an aggregate of 183 (61pc) in 1997 and an aggregate of 248 (82.7pc) this year. This is an increase of 65 on 183 (35.5pc), not four fold as your reporter states.

It is over 50 years since I left school, but I still know the difference between aggregate and percentage.

Pensioner

Harwood

(Address supplied)