Broken-Line Functions with Unbroken Domains. Oct. 1999, 574-77
Building Connections among Classes of Polynomial Functions. Oct. 2000, 591–98
Building the Concept of Function from Students' Everyday Activities, Feb 1997, 144–49
The Case for Chaos, Apr 1998, 276–81 (see also Nov 1998, 713)
Chaotic Behavior in the Classroom. Feb. 2000, 148–53
Equivalent Representations in the Learning of Algebra, Nov 1997, 616–19
Fun Fractions? You've Got to Be Kidding! Oct 1998, 572–75
Function-ing in a World of Motion. Mar. 2000, 180–85
Getting into the "Swing" of Functions, Feb 1997, 102–9
Getting to the Root of the Problem. Mar. 2000, 208–11
Kinematics and Graphs: Students' Difficulties and CBLs. May 2000, 414–17
The Life Expectancy of a Jawbreaker: An Application of the Composition of Functions. Feb. 1999, 125-27
A Look at Parabolas with a Graphing Calculator, Apr 1997, 278–82
Making Connections between Sequences and Mathematical Models. May 2000, 434–36
The Mathematics of the Spirograph. Apr. 1999, 354-58
More Functions of a Toy Balloon, Apr 1997, 290–94, 300–2
Parametric Equations, Maple, and Tubeplots, Nov 1997, 612–13
Perfect and Not-So-Perfect Rollers, Jan 1998, 12–20
Piecing Together Piecewise Functions, Oct 1997, 550–52
Problem Solving with the Rule of Three, Oct 1998, 558–63
Products, 1998, 359
Publications, 1997, 499
Publications, Jan. 1999, 72
Reader Reflections, 1997, 66–67, 766
Reader Reflections, 1998, 71–72, 152, 819
Reader Reflections, Mar. 1999, 250, Apr. 1999, 280-81, 348
Reader Reflections, Dec. 2000, 734
Reciprocal Mappings: The Neglected Transformations, Apr. 322–27
The Scrambler, or a Family of Vectors at the Amusement Park. Jan. 1999, 64-69
A Singular Function: A Problem-Solving Parable, May 1997 390–93
Understanding Connections between Equations and Graphs. Jan. 2000, 48–53
Visualizing the Proof of the Mean-Value Theorem for Derivatives, Jan 1997, 16–18
We Have Liftoff! Introducing the Logarithmic Function. Apr. 1999, 344-45
