JavaSketchpad is a Java version of The Geometer's Sketchpad that runs as an Applet through your Web Browser.  You will need a Java-enabled browser to view and use any of these applets.  Netscape 4.x or Internet Explorer 4 or 5 should work just fine (Windows users should use Internet Explorer).  The applets may take a few minutes to downoad initially, so be patient.  I recommend closing other applications that you may have running especially Microsoft Word.

For more information about JavaSketchpad visit the JSP web-site at Key Curriculum Press.

2. Four Centers of Triangles

3. Loci of the Orthocenter of a Triangle

4. Trisection of an Angle

5. Overlapping Squares

6.  Dynamic Quadratic

7. Ferris Wheel NEW!

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GSP sketch illustrating Blackwell's Theorem