Videos on glacial erosion:
This video shows a computer simulation of glacier erosion. You can watch the landscape evolve from a fluvial landscape into a glaciated landscape, and discuss the features that you can see evolving.
This video shows the awesome glacier fjords in Norway. These deep fjords were cut by glaciers flowing into the ocean during Quaternary ice ages. You can see the smoothed and scoured bedrock, abraded smooth by the action of the ice. It focuses on Preikestolen, the flat top of a cliff that is controlled by bedding and joints in the rock.