Studying geometry is an integral component of learning mathematics because it allows students to analyse and interpret the world they live in as well as equip them with tools they can apply in other areas of mathematics. Therefore, students need to develop an understanding of geometric concepts as well as gaining adequate geometry related skills. The purpose of this paper is to describe a unit on Polygons in which dynamic geometry software is used for exploring and learning new concepts as well as for assessment. Through various age appropriate activities students explore polygons and their properties, make conjectures, test them, reason about geometric ideas as well as demonstrating an understanding and the ability to apply their knowledge of polygons. The activities used in this model create a motivating and engaging environment where technology allows students to discover mathematics on their own and construct their own understanding. (Contains 11 figures.)