The School Enrichment Model is an inclusive teaching model for the development of talent, creativity and potential of all students, including gifted and twice-exceptional students. Based on the belief that "a rising tide lifts all boats", the SEM allows the extension of the pedagogy of Gifted Education to the development of the talents of all students, providing each student in the class group with opportunities, resources and encouragement necessary to develop individual potential, through the use of differentiation, enrichment and acceleration strategies. The SEM boasts forty years of scientific research, available for free consultation and download from the University of Connecticut website (https://gifted.uconn.edu). Professors Renzulli and Reis have been able to translate research and theory into tools, procedures, and teaching materials in order to facilitate teachers in implementing the model in the classroom, collected in a 'Practical Guide for Teachers', 'The Schoolwide Enrichment Model: A How-to-Guide for Talent Development' (2014), Prufrock Press, translated and published in Italy with the title "The Schoolwide Enrichment Model. A practical guide for talent development (J. Renzulli, S. Reis, L. Milan, 2021, Edizioni Junior - Bambini srl).