The Adventures of Blinky Bill (1993)

S1E5 Blinky and the School Inspector (a.k.a. Blinky Bill the Teacher)

When a School Inspector pays a visit, chaos ensues as Blinky wreaks havoc throughout the school, ultimately prompting Miss Magpie to resign from her position. In an unexpected turn of events, Blinky steps in to take over as the new teacher. Now, the question remains: how will he handle the responsibilities of the classroom?