The study of topological policy cultures highlights a tendency in policy spaces to undo the effects of topographical and cultural distances and differences. In contemporary education policy trends, such traits are present in the attempts to reimagine classroom spaces. A case in point is Future Classroom Lab (FCL), a physical classroom concept developed and spread across Europe, which promotes the use of digital technologies and divides the classroom into different functional 'zones'. We analyse FCL as a prototype that incites open exploration in the use and design of classrooms. We argue that prototypes are sometimes equally morphing into "proto-practices," which are "practised" forms of prototypes that are in constant flux, enabling new and different functions, meanings and emotions to emerge. Prototypes and proto-practices secure the continuous transformation of policy spaces through relatively open variation, differentiation and exploration. As such, they are emblematic of contemporary topological policy cultures.