Only a few secondary schools in Wales identify, support and challenge more able and talented pupils according to a report by the education watchdog Estyn.
It found that in only a very few secondary schools do more able pupils from disadvantaged backgrounds receive support to overcome barriers to learning.
The report also found that more able and talented pupils do less well in Wales than in England.
Since 2008, end-of-key stage 3 assessments, children between 11 and 13, show that too few pupils achieve above the expected level for their age in core subjects of English or Welsh, mathematics and science.
Also, at GCSE level, too few pupils achieve grades A* or A in these core subjects.
A lack of continuity in the transition from primary to secondary school for the more able and talented pupils was also highlighted. Where transition arrangements were seen to be working well a positive impact on pupils' long term achievement had been noted.
In the few schools where more able pupils achieved their full potential the watchdog says they have benefitted from:
- personalised approaches to learning;
- access to specialist teachers; and
- mentoring about career choices
The Welsh Government responded to the report's finding, saying: