Cabri 3D is a relatively new software which has great potential in teaching and learning and in the development of new mathematics. An obvious use of Cabri 3D is in the three-dimensional geometry of polyhedra, planes, cones, prisms, etc. However, it may also be used to facilitate visualization and as a mediator between the world as experienced and the abstract world of 2D geometry. It also enables the modeling of both architectural and mathematical structures and of different types of objects in motion. This paper will explore a number of possibilities and introduce an approach based on an integration of text, hypertext, both static and dynamic pictures and interactive demos.