The paper investigates two -- often disconnected -- policy questions: how can we scale the use of evidence in teaching practice, and how can we generate and scale innovation? Both questions necessitate understanding how teachers and schools connect with each other, and with other organisations and professionals. The paper thus explores the role of…

One cannot begin considering the topic of this colloquium without asking, why twenty years? Why not two hundred? Two hundred years ago, Silvestre Franois Lacroix was about to be named chief officer of the Commission Executive de L'Instruction Publique. Out of that experience, together with his long career in instruction, especially as professor of…