This project aims to empower teachers develop focused interventions in terms of instructional methodology in order to help all students improve and experience happiness and success. Especially, the project aims to help teachers acquire the necessary skills and knowledge in order to effectively apply differentiated instruction, thus being able to respond to the needs of all students in mixed ability classrooms. Furthermore the project seeks to establish an ethos of collaboration within every individual participating school, enabling teachers to rely on their own knowledge and expertise, apply peer coaching practices, jointly design lessons, develop instructional material, observe lessons of their colleagues, evaluate, reflect and improve their practices. Collaboration will not be limited within individual schools but will be expanded to include all schools and organizations from all participating countries. The outcomes of the project will be accessible not only to the participating institutions, but to anyone interested in the topic via the utilization of contemporary ICT tools, like web-pages, discussion forums and e-classes. Based on the above, the specific objectives of the project are: 1) To provide training and support to teachers(primary school) in order to apply differentiated instruction. 2) To develop school based training schemes, based on peer coaching approaches. 3) To create on-line tools that will enhance collaboration, communication and exchange of good practices. The main outcomes of the project include the design and delivery of two teacher training courses on the topics of differentiation of instruction and lesson observation/evaluation/feedback (2 series of seminars each consisting of 15 instructional hours to be offered twice in each participating country). These seminars will be delivered in all the participating countries in the mother tongue of the participants. Teacher trainers who will deliver these seminars will be trained in advance by distinguished scholars/researchers (2 seminars, one on differentiation and one on lesson observation/evaluation/feedback,each having a 5 day duration). Teachers will be constantly supported by the experienced trainers throughout the duration of the project: teacher trainers will visit teachers at schools to help them design lessons, to observe their instructional practices and provide constructive feedback and even organize co-teaching sessions. All the material prepared by the teachers and their trainers will be uploaded on a web platform, an e-class accessible to all the participants and also open to anyone else interested in the topics at hand. The e-class will support material in the language of the participating countries, as well as material in English (some key aspects of the work will be translated into English in addition to some key readings about differentiation and lesson observation). Further to the e-class, a book will be prepared in English to disseminate the good practices that will emerge in the course of the project. The potential long term benefits of the project It is anticipated that the project will help in the development of practices of teacher training that will continue to be implemented after the completion of the project.