[en] This paper provides a description of the French Sodium and liquid Metal School (ESML) created in 1975 and located in France (at the CEA Cadarache Research Centre) and of the Fast Reactor Operation and Safety School (FROSS) created in 2005 at the Phenix plant. It presents their recent developments and the current collaborations throughout the world with some other nuclear organizations and industrial companies. The very recent courses implemented within the frame of INSTN, (French Nuclear Teaching Institute), in collaboration with the Sodium and liquid Metal School (ESML) to answer to the future needs of Generation IV SFR concept and design are also presented. The sum of courses provided by CEA through its Sodium school and FROSS organizations is an unique valuable amount of knowledge on Sodium Fast reactor design, technology, safety and operation experience, decommissioning aspects and practical exercises. It is provided for the national demand and, since the last ten years, extensively opened to foreign countries. Over more than 30 years, this organisation has demonstrated its flexibility in adapting its courses to the changing demand in the Sodium Fast reactor field, and in association with the PHENIX and SUPERPHENIX plants, can adapt its teaching techniques using specific theoretical and practical courses and lectures. This paper is an up-to-date of the paper presented in 2007 in CONTE conference. (author)