From the stress of results day to the buzz surrounding the school formal, they show life as pupils experienced it two decades ago.
The pupils pictured will be in their 30s now, perhaps with children of their own.
But, if that’s you, this trip down memory lane will make you feel once again like a spotty teen whose biggest worries were getting your homework done and plucking up the courage to talk to your school crush.
This retro photo gallery features pupils and teachers at schools around Northern Ireland during the mid-noughties.
Star pupils who excelled in the fields of academia and sport, kind-hearted youngsters doing their bit for charity, and BFFs unwinding outside the classroom are all pictured in these evocative images.
There’s even an ex-pupil among them who was picked to appear alongside Johnny Depp in a Hollywood film.
Can you spot yourself or an old school friend in these photos? For more Northern Ireland nostalgia, check out this look back at noughties days out.
33. Hollywood-bound
Former Coleraine High School pupil Jayne Wisener, 19, pictured in 2008, after landing a role as Diana alongside Johnny Depp in the Sweeney Todd film | National World Photo: Diane Magill
34. Results day
Ballyclare High School pupils Nevan Joyce, Paul Anderson and Simon Baxter receive their A level results in 2007 | National World Photo: Diane Magill
35. Helping our feathered friends
St Colm's High School pupils making bird food during an open night at the Draperstown school in 2008 | National World Photo: Adrian Robinson
36. Ziggy
Stephanie Clarke, Scott Winter, Joanne Hughes, Larissa Crowe and Amy Hughes with Ziggy the dog at City of Armagh High School in 2007 | National World Photo: Diane Magill