Teaching is a passionate profession.

Sustainable leadership does no harm to and actively improves the surrounding environment.

Singapore gives 10% "white space" time to all of its teachers to come up with their own innovations outside of the official curriculum. This encourages teachers to turn to their colleagues for inspiration and ideas.

In Finland, within very broad government guidelines, teachers create their own curricula together across schools in every community and district. They don't confine collaboration to their own individual schools and to just implementing other people's ideas.

We need standards with flexibility, not standardization with force if we are to get the best from our teachers.

In collaborative cultures, failure and uncertainty are not protected but shared and discussed to gain support.

Every solution has a problem.