100 Mathematics Programs for the IBM PC, Oct 1987, 593
252/7: A Divisibility Pattern, Oct 1986, 542-546
A.I.M.S. in the Classroom, May 1994, 364-370
An Abundance of Solutions, May 1992, 384-387
An Active Approach to Geometry, Dec 1994, 702-703
Activities: Activities to Introduce Maxima-Minima Problems, May 1991, 379-386
Activities: If Pythagoras Had a Geoboard, Feb 1993, 137-40, 145-8
Activities: Pythagorean Dissection Puzzles, Apr 1993, 302-8, 313-4
Activities: Starring in Mathematics, Sep 1991, 463-470
Activities: The Toothpick Problem and Beyond, Oct 1992, 543-5, 555-6
Algebraic Explorations of the Error 16/64 = 1/4, Apr 1986, 246-248
Applying the Midpoint Theorem, Apr 1988, 274
Areas and Perimeters of Geoboard Polygons, May 1990, 392-398
Asymptotes and Other Limiting Functions, May 1993, 411-414
An Attractive View of Composite Functions, May 1993, 415-417
Can Your Students Give Examples?, Oct 1986, 524-525
Chomp- An Introduction to Definitions, Conjectures, and Theorems, Oct 1986, 516-519
Conjecturing with Logarithms, Jan 1991, 35-36
Constructivism-A Theoretical Revolution for Algebra, Nov 1988, 624-631
Creating Miracles: A Study of Student Discovery, Jan 1995, 60-61
Creative Teaching Will Produce Creative Students, Sep 1994, 415-418
Deconstructing Constructivism, Feb 1994, 91-97
Discovering a New Algorithm for Area, May 1990, 368-370
Discovering Geometry: An Inductive Approach, Sep 1990, 482
Discovering Mathematics, Sep 1987, 476-478
Discovering Mathematics: The Art of Investigation, May 1988, 403-404
Discovering Patterns for Sums of Polygonal Numbers, Sep 1986, 437-438
Discovering the Law of Sines, Nov 1991, 634-635
Exploratory Geometry-Let the Student Write the Text, Sep 1994, 403-48
Folding Perpendiculars and Counting Slope, Oct 1992, 538
Fraction Patterns-Visual and Numerical, Apr 1989, 254-259, 298
Implementing the Standards: Transition to High School Mathematics, Nov 1989, 614-618
Investigating Mathematics: The Touchstone Approach, Jan 1995, 62
Leading by Discovery: A Lab Manual for Calculus, Vol. 1, Dec 1994, 722
Making Your Own Rules, Nov 1990, 608-611
A Mathematical Magic Show, Oct 1990, 515-523
Mathematical Ties That Bind, Dec 1994, 682-689
Music for Eighty-Eight, Dec 1988, 757
Pixy Stix Segments and the Midpoint Connection, Nov 1993, 668-675
Professor Bear's Mathematical World, Oct 1988, 598
Pythagorean Triples, Nov 1986, 652-655
A Quadrilateral Hierarchy to Facilitate Learning in Geometry, Jan 1993, 30-36
Radical Constructivism: A Way of Knowing and Learning, Nov 1995, 688
Retrospective: On Learning Mathematics, Apr 1995, 330-335
Return to Mathematical Circles, Dec 1988, 757
A Special Circle for Quadratic Equations, Feb 1991, 125-127
Start the Year Right-Discover Pick's Theorem, Sep 1992, 424-425
Teaching Mathematics, a Teacher's Guide to Algebra, May 1988, 406-407
A Three-Dimensional Multiplication Table Inspires Mathematical Discovery, Feb 1988, 92-95
A Trigonometric Exploration, Oct 1992, 582-583
Using Lined Paper to Make Discoveries, Apr 1994, 246-247