Pupils at Manor Field School in Burgess Hill released 125 red balloons into the air to celebrate the school’s 125th anniversary on Friday (June 19).
The Junction Road school is holding a number of different events between January 2015 and January 2016 to mark the milestone.
On Friday, staff and pupils enjoyed a parade and musical and theatrical performances before the balloons - the same colour as pupils’ uniforms - were released.
Head teacher Kit Messenger said: “All the children were so excited and so proud to be part of it, and it was a touching moment.
“We had written memories on the balloons and a few ex-pupils had as well.
“We did a countdown, they were let off and there was a real gasp I think because there is something amazing about that many red balloons.
“They got tinier and tinier. It was a really wonderful moment.”
The school alumni chosen to let go of the balloons - including pupils of all ages - stood on the school’s new outdoor stage for the occasion.
Following a week of expressive art, every class in the school created a piece of art, music, dance or drama for the big parade.
A marching band including a member of staff and current and former pupils proved very popular.
And a newly-formed staff band - who Ms Messenger said had only practiced about three times before the day - were also a great success.
The school is also making a film of 125 years of Manor Field as part of the celebrations.
As part of the project, current pupils have interviewed ex-pupils, including 86-year-old Doris.
Ms Messenger added: “I think we have got a whole host of children who will become the new Jeremy Paxmans of the world - but gentler and kinder!
“My dream will be to have an outdoor showing of it.”
Staff and pupils have been delving into the history of Manor Field as work on the production of the film continues.