After 20 years of experience in educational innovation for professional IT professionals, he sold his business in 2012. Since then, he has contributed to the transformation of our school system. He became a primary teacher to experiment and refine with children, the innovations thought for adults during his career. His book « Save the school? » relates these experiences. It is now helping traditional schools to transform themselves. His specialty is the differentiation of large groups where everyone evolves at their own pace. In other words, how to do more and better, with less.