The goal of the project is to develop and validate an innovative approach to the development and certification of 21st century skills, a key component of which is the "21st Century Skills Pills." (short, intensive teaching modules to develop key skills). As part of the project, we plan to create a system of flexible methods for developing 21st century skills and link it to a system of microcredentials that will confirm the successive acquisition of these skills by students in a "small steps".