Children and most particularly boys, are more likely to get good grades at school after joining chess clubs, football teams and doing charity work, according to new research published by the Independent Schools Council. Taking part in activities beyond the normal school day boosted children’s self-esteem, confidence, team-building skills, increased their circle of friends and significantly boosts their chances of achieving top marks in GCSEs, it is claimed. The findings come amid continuing concerns that “hot housing” pupils to pass tests seriously harms their long-term development.