Children from across the North East took part in a World Record attempt.
Youngsters from primary schools in the region took part in a Maths on the Quayside challenge that should have seen them get the world record for the largest maths class on a maths trail.
And it was Top Class' very own Dr Maths who organised the entire event.
Dr Maths, real name Steve Humble - regional coordinator North East for the National Centre for excellence in the training of Mathematics - said the event went very well, with more than 1,000 children taking part over the project's two days.
He said: "I think it was really successful and I've already had a lot of positive feedback saying that they got a lot out of it.
"Some of the teachers contacted me to say that when the children got back to school they said that maths was really fun. And that really is a good comment.
"They said they liked the drumming and dancing at the Sage and the teachers said they were pleased with the way it was organised as well."
Mr Humble said the idea behind the World Record attempt was to demonstrate to young people and their teachers that maths is all around them. Even if they don't know about it.
Mr Humble thinks it will take a couple of months before the World Record is confirmed but is looking forward to it.
He said: "I have to get all of the photographs taken on the day and a video as well as the results and send them to Guinness. It will be excellent when it is confirmed, though."