The document discusses eTwinning, a program that promotes school cooperation and teacher professional development across Europe. It has over 130,000 participating schools and 280,000 registered teachers. The document examines how eTwinning can help address current issues in education like declining teacher skills and the lack of technology use in schools. It also explores how eTwinning serves as a laboratory of innovation by nurturing new teaching practices and how its approach could help mainstream innovation in education systems across Europe.