A brainscan cannot interpret itself and neither can a data dashboard in education.

Teaching is not the oldest profession. But it is certainly among the loneliest.

On school culture: It's hard to eat something you've had a relationship with.

The rules of the world are changing. It is time for the rules of teaching and teachers' work to change with them.

All teachers are already leaders. It's in the nature of teaching.

In high performing countries, principals are working with highly qualified teachers who come from the top tiers of the graduation range, who have been rigorously prepared in universities and through supervised practice in schools, and who remain in education for all of their careers.

The economists who have put the spotlight on teacher quality are the ones who most misunderstand it.