The GREENT blended learning methodology provides a review of existing blended learning models in order to identify an approach that could best serve the objectives of GREENT. Based on this review, the methodology proposes the self-blend model as the one that could serve the objectives of GREENT project in the most appropriate way. Popular in high schools, the self-blend model gives students the opportunity to take classes beyond what is already offered at their school. While these individuals will attend a traditional school environment, they also opt to supplement their learning through online courses offered remotely. In order for this method of blended learning to be successful, students must be highly self-motivated. This model provides an element of flexibility that could adjust to schools from different countries and with varying profiles that will participate in the GREENT training. It could also be compatible with the fact that the focus of GREENT, green entrepreneurship, is not taught in most of the participating countries as a distinct curriculum subject in secondary schools. In addition, the fact that the online work is done as homework does not create the need for infrastructure in the school.