Dr. Math, in a reply to a student question, mentions how you can construct an ellipse using string and thumbtacks.

This site contains a lesson plan on the ellipse. The lesson plan has students draw an ellipse with pencil and string, and discussions on orbits and theoretical orbiting situations.

Drawing a perfect ellipse with pins and string is demonstrated with a java simulation.

Investigation and discussion of the way "Pin and string construction," works in producing an ellipse. Works through the corresponding equations in a well-ordered way.

Learn about drawing shapes using only a compass and straight edge or ruler with out measuring any lengths or angles.

In Spanish. Learn how to distinguish and draw each of the conic sections with these activities.

Drawing a perfect ellipse with pins and string is demonstrated with a java simulation.

[Free Registration/Login Required] Flipchart identifies and draws circles, squares, triangles, ovals (ellipses), and rectangles. Flipchart identifies spheres, cubes, cylinders, and cones of various sizes, in various orientations and...