Leslie Phillips and Joan Sims make their second appearances in the series here, having made their debuts in the previous entry, Carry On Nurse.

While in conference with his teaching staff (including Gregory Adams, science master; Edwin Milton, English master; Michael Bean, music teacher; Sarah Allcock, gym mistress and Grace Short, maths teacher); senior pupil Robin Stevens overhears that Wakefield is planning to leave at the end of term.

They are told to report to Wakefield's study and after much cross-examination he learns the reason for the week's events – the pupils simply did not want to see him leave.

Miss Wheeler, buoyed by her newfound love, announces that she intends to tell the Ministry that staff-pupil relationships at the school are excellent.

[3] Interiors: Exteriors: Variety called the film "an unabashed collection of uninhibited gag situations and dialog, but this time screenplay writer Norman Hudis has developed a slightly stronger story line and made the characters more credible ...

"[4] Margaret Harford of the Los Angeles Times wrote: "Carry On, Teacher gets a high mark for low comedy in the slapstick fashion of previous japes about doctors, nurses and sergeants.

"[5] The Monthly Film Bulletin stated: "Another slapstick farce in the Carry On series which, although predictable and occasionally pressed too hard, still manages to register some adroitly timed humour.