As final year BA and Qulified Teacher Status students, the authors thought they had already realised the power of using an interactive whiteboard (IWB). The use of information and communications technology is something they have to consider in the planning in every one of their lessons, including PE. However, the challenge of planning a maths lesson that exploits the power of the IWB forced them to think about just what is possible. When they had to deliver a year 6 mathematics lesson on an area of their choosing that fully demonstrated their knowledge of the tools available for use on an IWB for a class that they knew very little about, they decided to plan a lesson exploring the properties of 2D shapes and how these properties can be used to classify them. In this article, the authors describe this themed lesson, which made maximum use of an IWB, and the lessons they learned about integrating technology in the classroom. They conclude that using an IWB enhances lessons, not only in maths but across the curriculum. (Contains 2 notes.)