The Prime Minister went to some length this week to explain the Government's backdown on school class sizes. He said he still believed the "quality, not quantity" principle was right.
"But the execution of the idea was poorly handled and we all need to take some responsibility for that, including myself," he said. This is how political leaders usually explain an embarrassment and it is strange.
It is saying to the people, "We were right, you were wrong, but we couldn't convince you." The thinking seems to be that politically it is better to question the public's intelligence and admit to political incompetence than ever to admit you were wrong. Why do all politicians think we expect them to be infallible?
The reasons for the class size debacle are fairly clear. For some time the Treasury has been questioning the worth of lower class ratios that have been negotiated with teachers' unions over a number of bargaining rounds. The Treasury can count little measurable improvement in educational outcomes from smaller classes and quite reasonably suggests the money might be better used to improve the quality not quantity of teachers.
A similar view was expressed by education professor John Hattie whose work attracted the interest of John Key a few years ago. And it was largely endorsed by the head of the Education Ministry, Lesley Longstone, who was recruited from England recently. These appeared to be the Government's main sources of advice and it was welcomed. It gave Finance Minister Bill English some of the Budget savings the economy needs from the public sector.