Two Wise Maids (movie, 1937)

The two leading ladies are cast as Prudence and Agatha, a pair of old-fashioned schoolteachers in an old-fashioned small town. Disdaining the wimpy theories of "progressive" education, Prudence and Agatha stick to the reliable "Three R's," often teaching to the tune of a hickory stick. Though ridiculed for their so-called outmoded methods, the heroines manage to turn out quite a few prize students, earning the undying gratitude of the local citizenry.