Above and beyond AAA: The Similarity and Congruence of Polygons, Jan 1998, 276–80
Allium to Zircon: Mathematics and Nature, May 1997, 380–89
April's Menu of Problems, Mar–Apr 1998, 418–22
Bringing Geometry into the Classroom with Videodisc Technology, Nov-Dec 1994, 228-33
Cardboard Tubes Bring Geometry from Home, Oct 1998, 120–22
The Case of Jewels Jones, Nov-Dec 1995, 584-89
The Case of the Smash Hit, Mar–Apr 1998, 424–27
Covering the Plane with Rep-Tiles, Jan-Feb 1996, 666-70
Cross-and-Turn Tile Patterns, May 1997, 430–37
The Decorative Ornamental Ironwork of New Orleans: Connections to Geometry and Haiti, Apr 1999, 430–36
Exploring Geometry with Technology, Mar–Apr 1998, 436–42
From Tessellations to Polyhedra: Big Polyhedra. Feb. 2000, 348–57
Garden Designer; A Short History of Gardens, Mar–Apr 1998, 428–33
Geometry in the Middle School: An Exchange of Ideas and Experiences, Mar–Apr 1998, 412–15
Geometry Projects Linking Mathematics, Literacy, Art, and Technology, Feb 1999, 332–35
How Many Blocks?, Mar–Apr 1998, 404–11
Iggy Finds a Home, Jan 1999, 250–51
Many Faces Have I, Nov–Dec 1997, 180–83
March's Menu of Problems, Mar–Apr 1998, 416–22
Mathematical Investigations--Powerful Learning Situations, Feb 1998, 332–38
The Mathematics in Your Note Paper, Nov–Dec 1998, 168–69
Measuring Angles in Physical Therapy; A New Angle on the History of Movement, Mar–Apr 1997, 338–46
Middle-Grades Geometry, May 1996, 790-96
Middle School Students' Reasoning about Geometric Situations, Mar–Apr 1998, 398–403
My Application of the Pythagorean Theorem, May 1996, 814-16
Perimeter and Area through the van Hiele Model. Oct. 1999, 87–90
Perimeter or Area? Which Measure Is It? Sept. 1999, 20–23
A Plethora of Polyhedra, Mar–Apr 1998, 388–91
Polygon Capture: A Geometry Game, Oct 1998, 90–94
Proof and the Middle School Mathematics Student, Nov-Dec 1995, 516-18
Pythagorean Triples Revisited, May 1998, 478–79
Readers Write, 1994-96, 236, 238, 266, 268, 350, 553, 598, 601, 676
Readers Write, Feb 1997, 250
Readers Write, Feb 1998, 323, 356
Readers Write, Feb 1999, 281; May 1999, 496
The Role of Definition. Apr. 2000, 506–11
Shaping the Standards: Geometry and Geometric Thinking, Feb 1999, 301
Sorting Activities for Polygons, Mar–Apr 1998, 444–45
State-ing the Facts: Exploring the United States, Sept 1998, 8–14
Tangrams and Area, May 1998, 485–87
Truss(t)ing Triangles, Mar–Apr 1998, 394–96
Using Dragon Curves to Learn about Length and Area. Dec. 1999, 222–23
Worthwhile Tasks: Exploring Mathematical Connections through Geometric Solids, Sept 1997, 20–28
"You Are Cleared to Land.", May 1998, 452–56
