Rowing crews from Burnham Grammar in Buckinghamshire are being helped to improve their rowing stroke by double Olympic gold medallist James Cracknell.
They took to the water at Eton Dorney Lake in Windsor, the venue for the rowing and canoe sprint events at the London 2012 games.
The champion rower revealed his winning techniques as he launched a new STEM - science, technology, engineering and maths - challenge for secondary pupils.
The challenge invites teams of 11 to 14-year-olds from schools around the country to be part of the Olympics by designing a glove for canoeing, sailing or rowing.
