The nostalgic images capture daily life at schools around Yorkshire during the 90s, when Pogs, Tamagotchis and slap bracelets were among the biggest playground crazes.
Much-loved teachers and headteachers are pictured with their pupils in the classroom, at play and out in the community.
Schoolchildren are shown carrying out experiments in their lab coats, queueing for dinner in the canteen, showing off their artwork and taking the plunge in the pool.
Celebrity visitors include soap stars, one of whom is pictured returning to her old school, and even the Queen.
There are fond farewells for long-serving headteachers, and celebrations for two much-loved members of the school community who were named teacher and cook of the year.
The pictures include a lost school with a design so futuristic the building took its nickname from the spaceship in a famous sci-fi show.
If one photo more than any other in this retro gallery shows how school has changed since the early 90s, it is that of a whole class gathered around a single bulky grey computer for an IT lesson, long before tablets became commonplace.
What are your best memories of school in the 90s, and can you spot yourself, an old school friend or a much-loved teacher in this retro photo gallery?
17. Balloon release
Ronnie the Rhino at Fir Tree Primary School, Leeds, for their balloon release in 1999. The previous year, one balloon got as far as Holland. | YPN Photo: Justin Lloyd
18. Cook of the year
Satisfied customers with Georgina Blair, LACA school cook of the year for the North Eastern region, at Askern Spa junior school, near Doncaster, in 1999 | YPN Photo: Chris Lawton
19. Bunsen burner
Year 10 pupils Nathan Simmons and Terry Ramsden at work in the chemistry lab at Braimwood High School, Leeds, in 1999 | YPN Photo: Peter Langford
20. Taking the plunge
Former Olympic and Commonwealth swimmer Suki Brownsdon with Jonathan Plows, nine, left, and Hannah Fletcher, 10, two pupils at Birchfield Junior and Infant School, Gildersome, who were taking the plunge at Morley Leisure Centre, Morley, to help raise £200,000 to send British athletes to the 1996 Olympics | YPN Photo: Mel Hulme