Greg visited Blott in Tunbridge Wells to meet young supporters of the charity Build Africa to help launch a campaign to boost early learning in Uganda.
The money raised will be used to train teachers, provide reading and numeracy materials, develop buddy clubs and establish and equip parents' clubs. Around 6,000 young children will benefit.
Greg said:
"I am an Ambassador for Build Africa, which is based in Tunbridge Wells, so I was delighted to be asked to help launch this new campaign. Uganda has the second highest primary school drop-out rate in the world so it is extremely important that charities such as Build Africa are working to change this."