Incidentally, Markos posted a link to a book in which Rouse describes his teaching methods in careful detail. I'm copying that link here for reference: Latin on the Direct Method
Rouse described his experience in a letter to The Classical Journal
In your paper on "The Translation Habit," you suggest among possible remedies : " (4) The direct method was proposed by an ardent advocate." Whether or not it is necessary to "abandon this suggestion without a trial," it is the one infallible remedy. I taught in various public schools for fifteen years, always having this trouble to deal with, or at least to guard against; but in the thirteen
years that the direct method has been used in this school, we have never had any trouble with it at all. Nobody uses cribs, because cribs are of no use; if they did use cribs, the cribs would not help them to read authors in Latin and to discuss their meaning in Latin. Nevertheless, when called upon to translate passages thus read, everyone can do it. To give a striking proof, I add that last December a boy won one of the five open scholarships and exhibitions at Balliol, who had never used translation as a method of learning Latin; and he was a year under the statutory age. You know, of course, that the Balliol scholarships are the great prize coveted by English classical school- boys. We find the same thing year after year: boys trained on the direct method can compete with all comers trained by translation, and beat them, although they have given only about one-fifth of the time usually given to classics.
As for teachers, they can do as we have done: they can teach themselves. It only needs work.
W. H. D. Rouse
Perse School House, Cambridge
ἐξίσταντο δὲ πάντες καὶ διηποροῦντο, ἄλλος πρὸς ἄλλον λέγοντες, τί θέλει τοῦτο εἶναι;