Using Interactive-Geometry Software for Right-Angle Trigonometry
Charles Vonder Embse and Arne Englebretsen
	Directions for the exploration utilizing The Geometer's Sketchpad, Cabri Geometry 
	II, and TI-92 Geometry.
	(889, 1996)  602 - 605

Bringing Pythagoras to Life
Donna Ericksen, John Stasiuk, and Martha Frank
	Sharing Teaching Ideas.  A pursuit game with path a right triangle.  The questions 
	are related to the theorem of Pythagoras.
	(88, 1995)  744 - 747

Using Similarity to Find Length and Area
James T. Sandefur
	Similar figures and scaling factors.  Constructing spirals in triangles and squares.  
	Involvement with the theorem of Pythagoras.  
	(87, 1994)  319 - 325

The Converse of the Pythagorean Theorem
Jerome Rosenthal
	Three proofs.
	(87, 1994)  692 - 693

If Pythagoras Had a Geoboard
Bishnu Naraine
	Activities for discovering the relationship among the areas 
	of the four triangles determined by the squares constructed 
	on the sides of a given triangle.  
	(86, 1993)    137 - 140, 145 - 148

Pythagorean Dissection Puzzles
William A. Miller and Linda Wagner
	Activities and puzzles involving a Pythagorean configuration.  
	(86, 1993)    302 - 308, 313 - 314

A Geometrical Approach to the Six Trigonometric Ratios
Martin V. Bonsangue
	Visualizing the trigonometric ratios graphically.  
	(86, 1993)   496 - 498

A Pythagorean Party
Philinda Stern Denson
	Sharing Teaching Ideas.  Group presentations of different proofs
	of the theorem of Pythagoras.     
	(85, 1992)  112

Mathematics in Weighting
Richard L. Francis
	Using templates to investigate several concepts.  Included are
	squaring problems and the theorem of Pythagoras.
	(85, 1992)    388 - 390

Preparing for Pythagoras
Robert A. Laing
	Activities for discovering area relations for figures constructed
	on a right triangle.
	(82, 1989)   271 - 275

Pythagoras Meets Fibonacci
William Boulger
	Pythagorean triples hidden among the Fibonacci numbers.
	(82, 1989)    277 - 282

Nearly Nice Right Triangles
Bob Reid
	Side length ratios in 22.5-67.5-90, 18-72-90, and 15-75-90 triangles.
	(82, 1989)     296 - 298

Using Puzzles to Teach the Pythagorean Theorem
James E. Beamer
	Gives some proofs of the Theorem based on puzzles.
	(82, 1989)     336 - 341

A Different Approach to Teaching the Midpoint Formula
Beverly A. May
	Sharing Teaching Ideas.  Using the fact that the midpoint of the
	hypotenuse of a right triangle is equidistant from the vertices.
	(82, 1989)     344 - 345

Interesting Area Ratios Within A Triangle
Manfried Olson and Gerald White
	Activities for investigating areas of triangles formed when the sides
	of a original triangle are subdivided.
(82, 1989)     630 - 636

An Application of the Criteria ASASA for Quadrilaterals
Spencer P. Hurd
	A series of results leading to the Theorem of Pythagoras.
	(81, 1988)   124 - 126

Pythagorean Triples Using Double-angle Identities
Mary Ann Weidl
	Any angle in standard position with integral coordinates for points
	on its terminal side will generate a Pythagorean triple by doubling
	the angle.
	(81, 1988)    374 - 375

A Property of Right Triangles and Some Classical Relations
Angelo S. DiDomenico
	A Pythagorean triple relation which leads to other results including
	Heron's formula and the law of cosines.
	79, (1986)  640 - 643.

Nearly Isosceles Pythagorean Triples--Once More
Hermann Hering
	A proof that every NIPT can be generated by the formula provided.
	79, (1986)  724 - 725.

Proof by Analogy: The Case of the Pythagorean Theorem
Deborah R. Levine
	A proof of an area result involving triangles constructed on the sides
	of a right triangle.
	76, (1983)  44 - 46.

Nearly Isosceles Pythagorean Triples
Robert Ryder
	Right triangles in which the lengths of the legs differ by a unit.
	76, (1983)  52 - 56.

Right Triangle Proportion
James K. Rowe
	Several results obtained using the altitude to the hypotenuse.
	74, (1981)  111 - 114.

Pythagoras On Pyramids
Aggie Azzolino
	Activities involving the use of the theorem of Pythagoras to find
	altitudes of pyramids.
	74, (1981)  537 - 541.

On The Radii Of Inscribed and Escribed Circles Of Right Triangles
David W. Hansen
	Relations between these radii and the area of a right triangle.
	72, (1979)  462 - 464.

Pythagorean Theorem and Transformation Geometry
Medhat H. Rahim
	A proof utilizing translations and rotations.
	72, (1979)  519 - 522.

Preparing For Pythagoras
Robert A. Laing
	Activities preliminary to the theorem of Pythagoras.
	72, (1979)  599 - 602.

Problem Posing and Problem Solving: An Illustration Of Their Interdependence
Marion I. Walter and Stephen I. Brown
	Given two equilateral triangles find a third equilateral triangle whose
	area is the sum of the areas of the given triangles.  The Pythagorean
	theorem and a generalization.
	70, (1977)  4 - 13.

A Two-Square One-Square Puzzle: The Pythagorean Theorem Revisited
Jessie Ann Engle
	A puzzle for use in constructing squares.
	69, (1976)  112 - 113.

President Garfield and The Pythagorean Theorem
Malcolm Graham
	Garfield's proof.
	69, (1976)  686 - 687.

Pythagorean Puzzles
Raymond E. Spaulding
	Activities for the demonstration of the theorem.
	67, (1974)  143 - 146, 159.

Are Triangles That Have The Same Area and The Same Perimeter Congruent?
Robert W. Prielipp
	Some theorems about right triangles and a counterexample.
	67, (1974)  157 - 159.

If Pythagoras Had A Geoboard
William A. Ewbank
	The theorem of Pythagoras and some variations on a geoboard.
	66, (1973)  215 - 221.

Helping Students To See The Patterns
J. Edwin Eagle
	Some problems related to the theorem of Pythagoras.
	64, (1971)  315 - 322.

Two Incorrect Solutions Explored Correctly
Merle C. Allen
	Converse of Pythagoras, area of a triangle.
	63, (1970)  257 - 258.

The Area Of A Pythagorean Triangle and The Number Six
Robert W. Prielipp 
	The area of such a triangle is a multiple of six.
	62, (1969)  547 - 548.

Introducing Number Theory In High School Algebra and Geometry,
Part 2, Geometry
I. A. Barnett
	Pythagorean triangles, constructions, unsolvable problems.
	58, (1965)  89 - 101.

Application Of The Theorem Of Pythagoras In The Figure Cutting Problem
Frank Piwnicki
	Dissection of squares and triangles.
	55, (1962)  44 - 51.

Pythagorean Converse
Martin Hirsch
	Six proofs.
	54, (1961)  632 - 634.

Right Triangle Construction
Nelson S. Gray
	Pythagorean triangles.
	53, (1960)  533 - 536.

Primitive Pythagorean Triples
Ben Moshan
	Geometric approaches to the problem.
	52, (1959)  541 - 545.

Pappus's Extension Of The Pythagorean Theorem
Howard Eves
	History and proof.
	51, (1958)  544 - 546.

A Model For Visualizing The Pythagorean Theorem
Emil J. Berger
	How to construct it.
	48, (1955)  246 - 247.

A Model For Visualizing The Pythagorean Theorem
Clarence Clander
	How to construct it.
	48, (1955)  331.

Note On "Model For Visualizing The Pythagorean Theorem"
E. Eagle
	See above.  {Berger  48, (1955) 246-247}
	48, (1955)  475 - 476.

The Pythagorean Theorem - Proof Number One Thousand
J. C. Eaves
	Demonstration devices and a proof.
	47, (1954)  346 - 347.

Company For Pythagoras
Adrian Struyk
	Seven geometrical situations satisfying  a(nth) + b(nth) = c(nth).
	47, (1954)  411.

A Third Note On The Pythagorean Theorem
Victor Thebault
	3,4,5 right triangles.
	46, (1953)  188 - 189.

Note On Pythagoras' Theorem
C. Gattegno
	Areas and the theorem.
	45, (1952)  6 - 9.

Pythagorean Theorem Model
Isadore Chertoff
	How to construct it.
	45, (1952)  371 - 372.

A Second Note On The Pythagorean Theorem
Victor Thebault
	A proof of the converse which is independent of the theorem.
	44, (1951)  396.

Right Triangle Models
Isadore Chertoff
	For use in demonstrating five theorems.
	44, (1951) 563 - 565.

The Theorem Of Pythagoras
William L. Schaff
	A bibliography.
	44, (1951)  585 - 588.

The Pythagorean Theorem
Phillip S. Jones
	Historical comments.
	43, (1950)  162 - 163.

A Note On The Pythagorean Theorem
Victor Thebault
	The particular  3,4,5  case.
	43, (1950)  278.

Generalization As A Method In Teaching Mathematics
R. M. Winger
	Geometrically the article considers generalizations of the theorem 
	of Pythagoras.
	29, (1936)  241 - 250.

Proof Of The Theorem Of Pythagoras
Alvin Knoer
	Another.
	18, (1925)  496 - 497.

A Proof Of The Theorem Of Pythagoras
George W. Evans
	Another.
	16, (1923)  440.

Some Angles Of The Right Triangle
Alfred L. Booth
	Constructing some special right triangles.
	11, (1918-1919)  177 - 181.

Editorial (Proofs Of The Pythagorean Theorem)
	Comments on a collection of proofs by Arthur R. Coburn.
	4, (1911-1912)  45 - 48.

H.J.L.
07/15/97
email:  00hjludwig@bsu.edu
home page: http://www.cs.bsu.edu/~hjludwig/