• This website contains several dynamic proofs of the Pythagorean Theorem.
  http://www.ies.co.jp/math/java/geo/pythagoras.html
  
• One of Dudeny’s proofs of the Pythagorean Theorem is located on this website.
  http://www.geocities.com/CapeCanaveral/Launchpad/3740/dudeny.html
  
• Stephanie J. Morris a Mathematics Education graduate student at the University of Georgia has presented many visual and algebraic proofs of the Pythagorean Theorem on this website. She claims that "Students who are taught the Pythagorean Theorem using [multiple] methods will see the connections, and thus, benefit greatly".
  http://jwilson.coe.uga.edu/emt669/Student.Folders/Morris.Stephanie/
  EMT.669/Essay.1/Pythagorean.html
  

Related Resources:

     Bennett, D. (1995). Pythagoras plugged in: Proofs and Problems for The Geometer’s Sketchpad. Berkeley, CA: Key Curriculum Press.

     Berger, E. J. (1955). A model for visualizing the Pythagorean theorem. Mathematics Teacher, 48, 246-247.

     Eaves, J. C. (1954). The Pythagorean theorem - Proof number one thousand. Mathematics Teacher, 47, 346-347.

     Ericksen, D., Stasiuk, J., & Frank, M. (1995). Bringing Pythagoras to life. Mathematics Teacher, 88, 744-747.

     Gray, N. G. (1960). Right triangle construction. Mathematics Teacher, 53, 533-536.

     Hirsch, M. (1961). Pythagorean converse. Mathematics Teacher, 54, 632-634.

     Levine, D. R. (1983). Proof by analogy: The case of the Pythagorean theorem. Mathematics Teacher, 76, 44-46.

     Rosenthal, J. (1994). The converse of the Pythagorean theorem. Mathematics Teacher, 87, 692-693.

     Schloming, R. (1970). Thabit ibn Qurra and the Pythagorean theorem. Mathematics Teacher, 63, 519-528.

     Schloming, R. (1976). President Garfield and the Pythagorean theorem. Mathematics Teacher, 69, 686-687.