Plot: We're going back to school, as the bakers make canteen flapjacks, school cake and a school fete Showstopper. Who'll be top of the class, and who'll be expelled from the tent?
Cast
Paul HollywoodSelf - JudgePaul Hollywood was 59 in The Great British Bake Off - Season 9 - Back to School Week (Episode 4).
Birthday: Tue, Mar 01 1966
Prue LeithSelf - JudgePrue Leith was 85 in The Great British Bake Off - Season 9 - Back to School Week (Episode 4).
Birthday: Sun, Feb 18 1940
Noel FieldingSelf - PresenterNoel Fielding was 52 in The Great British Bake Off - Season 9 - Back to School Week (Episode 4).
Birthday: Mon, May 21 1973
Alison HammondSelf - PresenterAlison Hammond was 50 in The Great British Bake Off - Season 9 - Back to School Week (Episode 4).
Birthday: Wed, Feb 05 1975