Sinclair, N. (2019). Role of the sense in mathematical thinking and learning. In M. Peters (ed.) Encyclopedia of Educational Philosophy and Theory. Springer.

Sinclair, N. (2016). Mathematics Education as a Matter of Technology. In M. Peters (ed.) Encyclopedia of Educational Philosophy and Theory. Springer.    

Sinclair, N. & Robutti, O. (2013). Teaching practices in digital environments. In S. Lerman (Ed.), Encyclopedia of mathematics education. Springer. Online First.