Brooke helped mentor London school children in a national enterprise competition which they went on to win.
The pupils came up with the simple-but-brilliant idea that children across the country could round-up their dinner money to give extra pennies each day to charity.
Brooke mentored the school children from Skinners' Academy in Hackney, East London, throughout the process and was delighted when they won the Enterprise Challenge competition run by The Prince's Trust charity, Mosaic.
Mosaic set up the Enterprise Challenge contest to encourage youngsters in less well-off areas into business and help give them self belief.
The pupils from Hackney were the first to see their winning business plan turned into a working scheme.
Hundreds of schools are now taking part in the scheme which is expected to raise hundreds of thousands of pounds for good causes.
Brooke said: 'It was a fantastic experience mentoring these children and they deserve all the plaudits that they get.
'They came up with this excellent idea, executed it superbly and turned it into a reality.
'I really hope that they become inspired to set up their own businesses one day.'