Phonics will always be unpopular with teachers for at least 3 reasons. 1. Teachers are typically from good middle-class backgrounds, and will naturally assume children will just learn to read because their parents basically tutored them for hundreds or thousands of hours and they just magically taught themselves. 2. It's hard for an individual practitioner to have any idea whether their methods are wonderful or absol…
Well, a good teacher could (and can) indeed see, what methods he use are effective or not. As he gets new data with new "fresh" kids who are individuals, but usual still average. So you could experiment. In real life you probably can't as (at least in germany) it is pretty strict and fixed what is about to be teached in class, when and how. That kills all creativity and creates boredom in the teacher and his class.
Any evidence?
Doctors could figure out that not washing hands was killing patients, but didn't.
> As he gets new data with new "fresh" kids who are individuals, but usual still average. So you could experiment.
There will always be multiple things a teacher does differently so it will be, in practice, impossible to attribute success or failure to any particular practices. That's aside from random noise (which might be more systematic - what if some random good / bad kid happens to have a large influence on the whole class?).
Remember how Skinner proved pigeons could develop superstitions? Or look at any other profession that deals with a little bit of randomness (human factors / biology) and see the stupid stuff they used to believe.