YOUNGSTERS had to look twice as three new optical illusion models were set up in their playground.
Staff and pupils at Lynnfield Primary School, in Grosvenor Street, Hartlepool were celebrating after being awarded a £3,000 Royal Society Grant earlier this year.
And the money was put to good use as the children enjoyed a scientific afternoon where they were joined by experts from Durham University and Mayor of Hartlepool, Stuart Drummond.
Mayor Drummond officially unveiled the three new models at the school and the pupils will now be able to enjoy science lessons featuring the new quirky illusions.
Drou Easton, Year One teacher at Lynnfield Primary, said: “The models are absolutely fantastic.
“One of them is just three pieces of metal set up. But when you look at it from a certain angle it looks like a triangle.
“Another is a chair which makes the person who sits on it look really small.
“And the third model is built on the impossible staircase illusion devised by Roger Penrose.”
The school work in partnership with Durham University on a number of projects and the scientists explained to the pupils how each of the illusions work.
Mrs Easton added: “The scientists from Durham University were great, they explained everything to the pupils on their level. The children really enjoyed the day, they are looking forward to using the illusions in their science lessons.”