Children at a Chingford primary school are helping to prepare for the biggest moment in hunger campaigning history with the help of a London 2012 gamesmaker.

Students at Chase Lane Primary School, along with a gamesmaker, will make hundreds of windmill flowers on Wednesday which they will plant on a giant arrow made of turf, which will point towards Hyde Park.

The arrow will point towards Hyde Park in anticipation of an even fighting global hunger which is supported by over 200 charities.

Up to 200,000 people will meet in the park for the Big IF event, where they will plant a windmill flower, making an installation the size of a football pitch.

The Big IF event is the culmination of the Enough Food For Everyone IF campaign that aims to end global hunger.