Evidence for climate change - data handling

This is a short standalone activity, good for developing higher order thinking skills and providing an opportunity for cognitive conflict and discussion. Firstly either allow the students to work through the first two set of tasks sequentially. Alternatively, one half of class can be given first sheet,marked with a triangle, the other half being given the ones marked with a square to be worked on independently. After a few mins pair up with third sheet. Students respond well to even quite tricky questions.