Following on from my post from the other day, I tried the mistake game with my Year 11′s again yesterday. It was INCREDIBLE. They were engaged and helping each other. They were asking productive questions, making useful suggestions to help rework a solution. They were giving advice to each other and helping to clarify points of confusion that popped up. It was just like it ought to be. I was very proud of how they conducted themselves.
To follow up from this, I set them one of the following incorrect solutions as a homework exercise:
They went really well with it! Generally speaking they were able to identify the misconceptions, explain what they did and correct it. Here is one standout example: