Birthdays and the Binary System: A Magical Mixture, Sept 1997, 6–12
Card Logic. Oct. 1999, 74–77
Describing Student Performance Qualitatively, May 1996, 828-35
Exploring Patterns in Nonroutine Problems, Feb 1997, 262–69
Fiber Meets Fibonacci; The Shape of Things to Come, Jan 1999, 256–62
Mathematics Projects Promote Students' Algebraic Thinking, Feb 1997, 282–88
My Way and the Highway, Nov-Dec 1995, 550-51
Promoting Classroom Dialogue: Using Calculators to Discover Patterns in Dividing Decimals, Apr 1994, 72-75
Readers Write, 1994-96, 66, 106, 148, 268, 273, 324, 326
Readers Write, Sept 1997, 4
Readers Write, Nov–Dec 1998, 210–211; May 1999, 496
Socrates and the Three Little Pigs: Connecting Patterns, Counting Trees, and Probability. Nov. 1999, 156–61
Students' Construction of Formulas in Context, Feb 1997, 230–36
"Tri-Square" Numbers, Apr-May 1995, 408-9
