So I'm re-reading 1984 (yes, it's that point in the term...) and I've been reminded of the wonders of DoubleThink: "The power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them… To tell deliberate lies while genuinely believing in them, to forget any fact that has become inconvenient, and then, when it becomes necessary again, to draw it back from oblivion for just as long as it is needed." I've suddenly realised how much this applies to what happens in schools. For example - We know that using highlighters on student's work achieves nothing - yet schools will pursue teachers who fail to use highlighters to the point of destroying their careers. Many of our systems for measuring student achievement are deeply flawed (for example, KPIs, flightpaths etc etc.) and yet not only do we continue to use them, we base our decisions about the students future on data we know to be incorrect, or even faked. The lie becomes the truth. Can anyone else think of some examples? It would be doubleplusgood to have a few more. I don't like being a minority of one, even though I know that does not make me insane.