Derek Muller: "Can you teach a general thinking skill?"
John Sweller: "I don’t believe you can. It can be learned, it is learned, and it is biologically primary…If you are talking about a teachable thinking skill, one you have to specify it, you have to provide evidence that it has been taught and learned and that you get a different response from people who have learnt that skill and been taught that skill and people who haven’t been."
So here’s my challenge. Can anyone find evidence of a "general thinking skill" that has been taught and then learnt by students?