It's separating students from A, B, C, D and so on. And the "A students" get the tougher curriculum, the best teachers, etc. Well, they took, over a three-month period, D-level students, gave them A's, told them they were "A's," told them they were bright, and at the end of this
Consiste en separar los estudiantes en A, B, C, etc. Y los estudiantes A reciben el plan de estudios más difícil, los mejores profesores, etc. Bueno, ellos tomaron estudiantes de nivel D, y durante un período de tres meses, les dieron las notas más altas, les dijeron