One would thus imagine a private lesson in which a teacher pushes the child to the maximum of his or her capabilities. Yet, one-on-one instruction is not enough to become bilingual, and not only because it can quickly become boring. In fact, becoming bilingual, accepting and defining oneself as such, is a transformation of self. This visceral, identity component is only possible through interaction with individuals one recognizes as peers; in the case of children, other children. Thus, the teacher-student relationship is essential to achieving the cognitive goal. The group class, in turn, contributes to achieving the second goal, bringing about a transformation of identity through fun and laughter, complicity and emulation. Naturally, in the case of a modern language, the group needs to be small enough for everyone to have a chance at self-expression but large enough to create a group dynamic. That is why our classes fluctuate between 4 and 15 students. In our summer camps, the ratio of staff to children is even smaller, with the aim of producing language without overwhelming the children.