
 While a cone is drawn with Cabri 3D, understand the basic operations of Cabri 3D through observation of threedimensional figures.
 Set a learning of drawing the cone by using Cabri 3D.
 Deal carefully with the method of taking a point in a given space.
* By dealing with such methods as changing a radius of a circle, changing a point's position, and observing from various directions, this hour aims at ensuring that subsequent learning activities are smoothly carried out.
