Students are asked to identify as many factors as they can to help explain the key question under consideration. These are written into the "PostIts" and dragged around the screen filling the space.
Next, students work in pairs to come up with three to five headings under which the factors can be categorised. A key is then created so that each category is represented by a different colour.
The teacher then leads the class back through each factor in turn, asking the class to suggest which colour should be applied to each PostIt.
When the process is complete, the PostIts are organised on the screen so that all those of a similar colour are grouped together.