Multiple Graphics Views
Graphics and Graphics 2 are both views of 2D coordinate plane. They can be used together and the objects in both views can be dynamically related.
The following is an example about visualizing the partial derivatives of a two-variable function.
Classwork: In the 3D Graphics view, plot the graph of the function . Then plot a movable point in the Graphics view corresponding to the xy-plane and construct the tangent plane at the corresponding point on the graph.