This study proposed to evaluate the level of the school assets in French and mathematics of the pupils of 6th year primary educations of the catholic agreed schools of the town of Kisangani, and to seek to it (them) characteristic (s) being able to predict their results. On a population of 5727 schoolboys of 6th year registered in 41 catholic primary schools of the town of Kisangani, during the school year 2009-2010, we retained 372 schoolboys, drawn in a random way in 12 schools. We used descriptive method. With the exit of this investigation, the pupils of sixth year of the catholic schools of the town of Kisangani, obtained results lower than the criteria required by UNESCO, that of 70%, the proof French (except 5 schools) and of mathematics (no school). And as regards the characteristics, only the characteristics of the teachers appeared predictors of the results of the pupils in mathematics. Like consequence, we must drawn much attention in the training of teachers, because it training level of a teacher makes possible to predict the results of his pupils.