As part of our Maths Inquiry the school wide focus has been on problem solving where the children are given a problem and they are to work in small groups to solve this particular problem. We have started using " Talk Moves" in our sessions whereby the children are the ones who are doing most of the talking/ solving through collaboration with their peers. See below for examples of the different Talk Moves.
I have also watched some examples of the teaching in action in a video clip found on the nzmaths site. Check out the link here Maths Inquiry Communities