It's time for the US to widen its circle of learning, not to circle its wagons against hostile ideas in education reform.

We should test prudently; not profligately.

There is no morality without temptation; otherwise it is just lack of opportunity.

Too often, shared visions really mean, "I have a vision; you share it!"

We will not achieve high performance in education if we replace teachers with machines or turn teachers into machines.

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

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.