The article deals with the problem of insufficient usage of research results devoted to the development and teaching a person in multi-aged unions in pedagogical theory and practice. Here we discuss the “invisible assets” phenomenon as the event of activity results of the people who earn synergetic effect which considerably exceeds the figure in terms of the number of efforts from separate components. Here we have listed the results of demonstrating the emergent effect of invisible assets within multiple-aged groups studied in the national educational science. Backbone factors which determine the value, capacity and limit of educational potential of multiple-aged groups are marked based on the historical and genetic analysis. Here we have shown you the need to use the results of abundant national educational experience under social development of the XXI teenagers.