And perhaps most important of all, two years later when the exam results came through, the pupils who had been put on these field trials who were in the lowest performing groups had jumped right to the top, in fact, pretty much at the top decile of performance in terms of
Y lo más importante de todo, quizá, es que dos años más tarde, a instancias de los exámenes, los alumnos que participaron de las pruebas de campo, que se encontraban en los niveles más bajos, saltaron a los niveles más altos. De hecho, al