The Case of Trapezoidal Numbers
Carol Feinberg-McBrian
	Activities for pattern investigations.
	(889, 1996)  16 - 24

Starting A Euclid Club
Jeremiah J. Brodkey
	A student-faculty group discusses the Elements.
	(889, 1996)  386 - 388

Spiral Through Recursion
Jeffrey M. Choppin
	Finding areas and perimeters of spirals created through recursive processes.
	(87, 1994)  504 - 508

Tournaments and Geometric Sequences
Vincent P. Schielack, Jr.
	Relating the number of games in a tournament to the sum 
	of a geometric sequence.  
	(86, 1993)  127 - 129

Gary O's Fence Question
David S. Daniels
	Ninth, tenth, eleventh, and twelfth-grade solutions for the 
	problem of finding the amount of fence required for a baseball field.  
	(86, 1993)    252 - 254

Mathematics in Baseball
Michael T. Battista
	One section involves the geometry of baseball.    
	(86, 1993)    336 - 342

The Shape of a Baseball Field
Milton P. Eisner
	Determining the shape of an outfield fence utilizing conic sections, 
	trigonometric functions, and polar coordinates.  
	(86, 1993)    366 - 371

The Golden Ratio: A Golden Opportunity to Investigate Multiple 
Representations of a Problem
Edwin M. Dickey
	Several ways of finding the value.  
	(86, 1993)    554 - 557

Drilling Square Holes
Scott G. Smith
	Using a Reuleaux triangle.  
	(86, 1993)    579 - 583

Inflections on the Bedroom Floor
Jack L. Weiner and G. R. Chapman
	Using the path of a folding door to illustrate the concept of a point 
	of inflection.  (This article would more appropriately be included 
	in a calculus bibliography - however the end-of-year listing 
	includes it under geometry.)  
	(86, 1993)  598 - 601

The Silver Ratio: A Vehicle for Generalization
Donald B. Coleman
	A discussion of a generalization of the golden ratio.
	(82, 1989)     54 - 59

Visualizing the Geometric Series
Albert B. Bennett, Jr.
	Using regions in the plane to represent finite and infinite geometric
	series.  (82, 1989)     130 - 136

The Peelle Triangle
Alan Lipp
	Information which can be deduced from the triangle about points,
	lines, segments, squares, and cubes.  A relation to Pascal's triangle.
	80, (1987)  56 - 60.

Periodic Pictures
Ray S. Nowak
	Activities involving graphical symmetries produced by periodic
	decimals.  BASIC program provided.
	80, (1987)  126 - 137.

Spheres in a Cone; or, Proving the Conic Sections
David Atkinson
	Using Dandelin's spheres to prove that the conics are indeed
	sections of a cone.
	80, (1987)  182 - 184.

Finding the Area of Regular Polygons
William M. Waters, Jr.
	Finding the ratio of the area of one regular polygon to that
	of another when they are inscribed in the same circle.
	80, (1987)  278 - 280

Geometrical Adventures in Functionland
Rina Hershkowitz, Abraham Arcavi, and Theodore Eisenberg
	Determining the change in area produced by making a change in
	some property of a particular figure.
	80, (1987)  346 - 352.

Tape Constructions
Lisa Evered
	Using tape to do standard ruler-and-compass constructions.
	80, (1987)  353 - 356.

Crystals: Through the Looking Glass with Planes, Points, and Rotational
Symmetries
Carole J. Reesink
	Three-dimensional symmetry related to crystallographic analysis.
	Nets for constructing eight three-dimensional models are provided.
	80, (1987)  377 - 389.

Illustrating the Euler Line
James M. Rubillo
	Finding the coordinates of the points on the line.
	80, (1987)  389 - 393.

Some Theorems Involving the Lengths of Segments in a Triangle
Donald R. Byrkit and Timothy L. Dixon
	Proof of a theorem concerning the length of an internal angle
	bisector in a triangle.  Other related results are included.
	80, (1987)  576 - 579.

Problem Solving in Geometry--a Sequence of Reuleaux Triangles
James R. Smart
	Investigation of area relations for a sequence of Reuleaux
	triangles associated with an equilateral triangle and a sequence
	of medial triangles.
	79, (1986)  11 - 14.

Halley's Comet in the Classroom
Peter Broughton
	Activities involved with the motion of the comet.  Construction of
	a model showing the relation between the comet's orbit and the orbit
	of the earth.
	79, (1986)  85 - 89.  (see note Sept. 1986, p. 485)

Reflection Patterns for Patchwork Quilts
Duane DeTemple
	Forming patchwork quilt patterns by reflecting a single square back
	and forth between inner and outer rectangles.  Investigating the
	periodic patterns formed.  BASIC program included.
	79, (1986)  138 - 143.

Dirichlet Polygons--An Example of Geometry in Geography
Thomas O'Shea
	Applications of Dirichlet polygons, including homestead boundaries
	and rainfall measurement.
	79, (1986)  170 - 173.

A Geometric Figure Relating the Golden Ratio and Pi
Donald T. Seitz
	The ratio of a golden cuboid to that of the sphere which
	circumscribes it.
	79, (1986)  340 - 341.

An Interesting Solid
Louis Shahin
	Can the sum of the edges, the surface, and the volume of a
	three-dimensional object be numerically equal?
	79, (1986)  378 - 379.

The Bank Shot
Dan Byrne
	Geometry of similar triangles and reflections applied to pool.
	79, (1986)  429 - 430, 487.

Where Is the Ball Going?
Jack A. Ott and Anthony Contento
	Examination of ball paths on a pool table.  BASIC routine included.
	79, (1986)  456 - 460.

High Resolution Plots of Trigonometric Functions
Marvin E. Stick and Michael J. Stick
	Some of the plots were part of a "mathematics in art" project in a
	high school geometry class.  BASIC routines included.
	78, (1985)  632 - 636.

Chamelonic Cubes
Gary Chartrand, Ratko Tosic, Vojislav Petrovic
	Cube coloring related to Instant Insanity and to Rubik's Cube.
	76, (1983)  23 - 26.

Enrichment Activities for Geometry
Zalman Usiskin
	Four facets, 16 activities.
	76, (1983)  264 - 266.

The Teddy Bear That Stays Stranded
Vernon Thomas Sarver, Jr.
	Given two boards try to retrieve a teddy bear from a circular island
	in a circular lake.
	76, (1983)  496 - 497.

A Student Run Geometry Contest
Charles G. Ames
	Description and sample problems.
	75, (1982)  142 - 143, 178.

1979 National Middle School Mathematics Olympiads In 
The People's Republic of China
Jerry P. Becker
	There are some geometry problems provided.
	75, (1982)  161 - 169.

Some Applications Of The Circumference Formula
Eugene F. Krause
	Looks at distances around various types of tracks and the effect of
	lane positions, finally comes to a consideration of the construction
	of train wheels.
	75, (1982)  369 - 377.

Geomegy or Geolotry: What Happens When Geology Visits Geometry Class?
Carole J. Reesink
	Crystallography, axes, symmetry, activities, examples.
	75, (1982)  454 - 461.

Repeating Decimals, Geometric Patterns and Open-Ended Questions
Robert L. McGinty and William Mutch
	Deals with geometric patterns derived using chords of a circle obtained
	utilizing the repeating decimal block for 1/p where p is a prime number.
	75, (1982)  600 - 602.

Some Strategy Games Using Desargues Theorem
Andrew J. Salisbury
	Tic Tac Toe on a grid derived from the Desargues configuration.
	75, (1982)  652 - 653.

The Geometry Of Tennis
Jay Graening
	The development of strategy (primarily ball placement) using
	triangle geometry.
	75, (1982)  658 - 663.

The Golden Ratio In Geometry
Susan Martin Peeples
	Activities exploring Fibonacci numbers and the golden ratio.
	75, (1982)  672 - 676, 685.

Geometric Probability - A Source Of Interesting and Significant 
Applications Of High School Mathematics
Richard Dahlke and Robert Fakler
	Probabilities related to area ratios.
	75, (1982)  736 - 745.

Mathematical Olympiad Competitions In The People's Republic of China
Jerry P. Becker and Kathy C. Hsi
	There are several geometry problems presented and solved.
	74, (1981)  421 - 433.

Activities From "Activities": An Annotated Bibliography
Christian A. Hirsch
	A list of articles from the "Activities" section.  Geometry is
	on pages 47 - 49.
	73, (1980)  46 - 50.

Unsolved Problems In Geometry
Lynn Arthur Steen
	A reprint from Science News.  Lists and discusses several problems.
	73, (1980)  366 - 369.

A Student Presented Mathematics Club Program - Non-Euclidean Geometries
	Suggested program topics.
	73, (1980)  451 - 452.

Geometric Transformations and Music Composition
Thomas O'Shea
	Relations between musical procedures (transposition, inversion, etc.)
	and transformations of the plane.
	72, (1979)  523 - 528.

Geometry Word Search
Margaret M. Conway
	Word search game.
	71, (1978)  269.

Geodesic Domes In The Classroom
Charles Lund
	Classroom activities related to the structure of geodesic domes.
	71, (1978)  578 - 581.

Geodesic Domes By Euclidean Construction
M.J. Wenninger, O.S.B.
	The use of Euclidean constructions to determine chord factors, etc.
	71, (1978)  582 - 587.

Curve-Stitching The Cardioid and Related Curves
Peter Catranides
	Some theory and instructions.
	71, (1978)  726 - 732.

A Mathematics Club Project From Omar Khyyam
Beatrice Lumpkin
	Conics and a cubic equation.
	71, (1978)  740 - 744.

Finding Chord Factors Of Geodesic Domes
Fred Blaisdell and Art Indelicato
	Some of the mathematics encountered in building a dome.
	70, (1977)  117 - 124.

The Orthotetrakaidecahedron - A Cell Model For Biology Classes
M. Stroessel Wahl
	An application of geometry to biology.
	70, (1977)  244 - 247.

Maps: Geometry in Geography
Thomas W. Shilgalis
	Projections from a sphere to a plane.
	70, (1977)  400 - 404.

Student Projects In Geometry
Andrew A. Zucker
	Eighteen suggestions and a bibliography.
	70, (1977)  567 - 700.

Dual Concepts - Graphing With Lines (Points)
Deloyd E. Steretz and Joseph D. Teeters
	An exhibition of duality.
	70, (1977)  726 - 731.

Discovery In One, Two, and Three Dimensions
Lyle R. Smith
	Relationships involving segments, squares, and cubes.
	70, (1977)  733 - 738.

The Nine-Point Circle On A Geoboard
Robert L. Jones
	Locating the nine points and the center.
	69, (1976)  141 - 142.

Minimal Surfaces Rediscovered
Sister Rita M. Ehrmann
	Soap bubble experiments for Plateau's problem (find the surface of
	smallest area with a given boundary.)  Soap film experiments for
	Steiner's problem (minimal linear linkage of points in a plane.)
	69, (1976)  146 - 152.

Coordinates For Lines: An Enrichment Activity
Alan R. Osbourne
	Developing a system of coordinates for lines in a plane.
	69, (1976)  264 - 267.

Circles, Chords, Secants, Tangents, and Quadratic Equations
Alton T. Olson
	Using geometric techniques to solve quadratic equations.
	69, (1976)  641 - 645.

The Design, Proof, and Placement Of An Inclined Gnomon Sundial Accurate For Your Locality
Charles T. Wolf
	Title tells all.
	68, (1975)  438 - 441.

Paper Folds and Proofs
Joan E. Fehlen
	Geometric results by paper folding.
	68, (1975)  608 - 611.

Rolling Curves
Stanley A. Smith
	Activities involving curves of constant width.
	67, (1974)  239 - 242.

How To Draw Tessellations Of The Escher Type
Joseph L. Teeters
	Methods for students to use in the creation of tessellations.
	67, (1974)  307 - 310.

Spirolaterals
Frank C. Odds
	Figures derived from a logically constructed set of rules.
	66, (1973)  121 - 124.

On The Occasional Incompatibility Of Algebra and Geometry
Margaret A. Farrell and Ernest R. Ranucci
	Situations in which geometric analysis indicates that an initial
	algebraic solution is incomplete.
	66, (1973)  491 - 497.

Fun With Flips
Evan M. Maletsky
	Activities for introducing the concept of a locus as the path of
	a point moving under certain conditions.
	66, (1973)  531 - 534.

The Wheel Of Aristotle
David W. Ballew
	A look at mathematical paradoxes.
	65, (1972)  507 - 509.

What?  A Roller With Corners?
John A. Dossey
	Closed curves of constant width.
	65, (1972)  720 - 724.

Mathematics On A Pool Table
Nicholas Grant
	The use of geometric techniques for predicting into which pocket
	a ball will fall.
	64, (1971)  255 -257.

A Construction Of and Physical Model For Finite Euclidean and Projective
Geometries
William A. Miller
	Models utilizing squares and tori.  Some development of theory.
	63, (1970)  301 - 306.

The Crossnumber Puzzle Solves A Teaching Problem
Sheila Moskowitz
	A crossnumber puzzle involving geometric concepts.
	62, (1969)  200 - 204.

Modern Mathematics Or Traditional Mathematics
Werner E. Buker
	Fagnano's problem and Dandelin's ellipse.
	62, (1969)  665 - 669.

In The Name Of Geometry
Thomas P. Hillman and Barbara Sirois
	A crossword puzzle involving puns.
	61, (1968)  264 - 265.

Six Nontrivial Equivalent Problems
Zalman Usiskin
	Two of the problems are geometric in nature.
	61, (1968)  388 - 390.

A Christmas Tree For 1968
Lucille Groenke
	An exercise in graphing.
	61, (1968)  764.

A Christmas Puzzle
Sister Anne Agnes von Steger, C.S.J.
	Geometrically based.
	60, (1967)  848 - 849.

The Relation Between Distance and Sight Area
Chew Chi-Ming
	The apparent length of an object related to its distance
	from the viewer.
	58, (1965)  298 - 302.

What To Do In A Mathematics Club
Dolores Granito
	Some of the activities could be used for geometric enrichment.
	57, (1964)  35 - 39.

Approximating An Angle Division By A Sequence of Bisections
Lyle E. Pursell
	Utilizes binary fractions.
	57, (1964)  529 - 532.

A Christmas Graph
John D. Holcomb
	Graphing a snowman.
	57, (1964)  560 - 561.

Enrichment: A Geometry Laboratory
Peter Dunn-Rankin and Raymond Sweet
	A discussion of possible activities.
	56, (1963)  134 - 140.

Christmas At Palm Beach High School - "The Geome Tree"
Josephine M. Chaney
	Polyhedral tree ornaments.
	55, (1962)  600 - 602.

Construction and Evaluation Of Trigonometric Functions Of Some Special Angles
James D. Bristol
	Applied geometry.
	54, (1961)  4 - 7.

The Cardioid
Robert C. Yates
	Properties.
	52, (1959)  10 - 14.

Review Tests Can Be Different
Louise Hazzard
	A crossnumber puzzle review test on area.
	52, (1959)  133.

Mobile Geometric Figures
Alvin E. Ross
	Construction of mobiles to demonstrate geometric principles.
	51, (1958)  375 - 376.

Another Approach To The Nine-Point Circle
John Satterly
	Also includes a proof of Feuerbach's theorem.
	50, (1957)  53 - 54.

An Unusual Application Of A Simple Geometric Principle
Laura Guggenbuhl
	The law of cosines and plastic surgery.
	50, (1957) 322 - 324.

Fun With Graphs
Paul S. Jorgensen
	Pictures by graphing.
	50, (1957)  524 - 525.

A Geometric Approach To Field-Goal Kicking
Gerald R. Rosing
	On taking a five-yard penalty to obtain a "better angle".
	47, (1954)  463 - 466.

A Method Of Exhibiting The Theorem Of Pappus In The Classroom
Norman Anning
	The construction of a device.
	46, (1953)  50.

Applications
Sheldon S. Myers
	The height of a room, the law of lenses, the inverse squares
	law for light.
	44, (1951)  141 - 143.

Projects For Plane Geometry
Marie L. Bauer
	Suggested projects for dealing with applications.
	44, (1951)  235 - 239.

Flying Saucers - A Project In Circles
Nina Oliver
	Using geometric techniques and principles to decorate paper plates.
	44, (1951)  355 - 357.

Mathematics and Art
William L. Schaff
	A bibliography which contains many entries which might be of use
	to geometry teachers.
	43, (1950)  423 - 426.

A Lesson In Appreciation: The Nine-Point Circle
Robert E. Pingry
	A construction approach.
	41, (1948)  314 - 316.

The Mathematical Foundations Of Architecture
Mary E. Craver
	Applications, constructions, ratios, examples.
	32, (1939)  147 - 155.

Art In Geometry
Lorella Ahern
	Geometric enrichment through art applications.
	32, (1939)  156 - 162.

Paper Folding In Plane Geometry
Sarah Louise Britton
	Finding the perpendicular bisector of a segment.
	32, (1939)  227 - 228.

Calculus Versus Geometry
Claire Fisher Adler
	Geometric and calculus solutions of three extremum problems.
	31, (1938)  19 - 23.

The Mathematics Of The Sundial
LaVergne Wood and Frances M. Lewis
	Applications of geometric principles.
	29, (1936)  295 - 303.

The Incommensurables Of Geometry
E. T. Browne
	Irrational numbers and geometry.
	27, (1934)  181 - 189.

Constructing A Transit As A Project In Geometry
T. L. Engle
	How to do it.
	24, (1931)  444 - 447.

Sources Of Program Material and Some Types Of Program Work Which 
Might Be Undertaken By High School Mathematics Clubs
Ruth Hoag
	Suggested topics and bibliography.  (Geometry  495 - 497.)
	24, (1931)  492 - 502.

Recreations For The Mathematics Club
Byron Bently
	Contains some interesting geometric puzzles and fallacies.
	23, (1930)  95 - 103.

Geometric Proofs For Trigonometric Formulas
Arthur Haas
	Functions of the sum and difference of angles.
	23, (1930)  321 - 326.

Geometry Humanized
Erma Scott
	A play in one act.
	21, (1928)  92 - 101.

Applications Of Indeterminate Equations To Geometry
M.O. Tripp
	Methods for finding integer sides for polygons.
	21, (1928)  268 - 272.

Stewart's Theorem, With Applications
Richard Morris
	Three proofs. Applications.
	21, (1928)  465 - 478.

Note On The Fallacy
Walter H. Carnahan
	Part of the segment equals the whole.
	19, (1926)  496 - 498.

Magic Circles
Vera Sanford
	An example of 1920's Japanese mathematics.
	16, (1923)  348 - 349.

Japanese Problems
Shige Hiyama
	From an 1818 manuscript.
	16, (1923)  359 - 365.

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