In principle, it is up to the teacher to update the learning in his classroom according to the capacities, interests and needs of his students. At certain times, the proposed activities will be specific to a subject taught, eg: the manipulation of objects in order to anchor a concept in mathematics, subtraction for example; this skill must be mastered in order to be reinvested in solving real problems. At other times, teaching will be done by means of learning integration units built around a theme representative of the interests of the stakeholders (children and teachers) or a skill of thought taking account of the material available and the objectives to be achieved. The theme will therefore be exploited by a series of activities which will touch on the objectives of the targeted disciplines: French, humanities, mathematics, sciences, humanities, plastic arts, music. This “interdisciplinary” pedagogy is a direct result of the work of researchers such as Freinet, Piaget, Dewey, who have all found that children generally live with reality and therefore cannot easily adapt to pedagogy that fragments their learning. Interdisciplinary pedagogy constitutes a model of economic teaching in time since it allows the integration of learning in different subjects and across levels, which is a definite advantage for multi-program classes; it is also effective since it makes learning more relevant to the student within him proposing activities based on the resolution of real problems thus allowing him to develop skills transferable to any type of situation. In other words, the student learns to learn.