The latest studies have shown that children focus better on the lesson if they are in separate classes, because there are differences in the way boys and girls are attainment, top international schools in Cairo
gives the teacher an opportunity to reconcile the way he explains it according to the class. Many studies have linked differences in attainment methods to brain size in women and men, and therefore girls and boys, where studies show that a girl's brain grows and develops faster than boys in childhood.