The first stage was to support the creation of a set of focussed resources by a model teacher. Under a teacher-driven construction paradigm, we hoped to show that the technology could be applied by a knowledgeable educator. The teacher endeavoured to use the toolkit, in its initial incarnation, to create applets which could be used to investigate and explore relations and problems in a particular subdomain of geometry - that of transformations (e.g. translation, rotation, and reflection).