![Practice makes perfect [CC-BY-SA-3.0 Steve Cook]](https://www.polypompholyx.com/wp-content/uploads/2013/03/practice_makes_perfect-207x300.png)
Around a decade ago I did a PGCE. Part of that PGCE involved a small-scale investigative study, from which I learnt a great deal about educational research, but not – I suspect – any of the intended learning outcomes. I was teaching a year-7 class, whose graphing skills needed improvement. Students would often forget to …