Sun Catchers (April 2007)
Fraction Action (January 2007)
Easy Parcheesi (February 2006)
Time Is of the Essence (September 2005)
What Is Your Millennial Age? (December 1999)
This Little Piggy (January 1999)

 Measurement and Data Analysis

Taking Time to Understand Telling Time (November 2008)
7000 Pancakes (May 2008)
Sun Catchers (April 2007)
A Mathematical Cornucopia of Pumpkins (September 2006)
Time Is of the Essence (September 2005)
A Mathematical Measurement Mystery (September 2004)
The Mathematical Candy Store: Weight Matters (April 2004)
Junior Architects: Designing Your Dream Clubhouse Using Measurement and Geometry (November 2003)
Hurry Up and Weight (September 2003)
Weighing the Options (March 2003)
Sizing Up the River (November 2002)
Dino-mite Explorations (May 2002)
Rubber-Band Rockets (March 2002)
Cont"rolling" Variables (November 2001)
This Little Piggy (January 1999)

 Data Analysis

Hickory Dickory Dock: Navigating through Data Analysis (February 2005)
Consumer Investigations: What Is the "Best" Chip? (March 2001)
What Do You Like to Read? (September 1999)

 Fractions

Fraction Action (January 2007)
Your Better Half (November 2005)
Picnicking with Fractions (March 2004)

 Algebra

Ocean Quest (February 2008)
Developing "Algebra-‘Rithmetic" in the Elementary Grades (November 2007)  
A Mathematical Cornucopia of Pumpkins (September 2006)
Using Virtual Manipulatives to Investigate Patterns and Generate Rules in Algebra (April 2005)
Uncovering the Magic (September 2000)

 Probability

Predictions and Probability (April 2008)
A Mathematical Cornucopia of Pumpkins (September 2006)
Easy Parcheesi (February 2006)

 Multiplication

Mr. Greenthumb's Garden (November 2004)

 Division

Longing for Division (April 2006)
Hurry Up and Weight (September 2003)

 Patterns

Ocean Quest (February 2008)
Patterns at Your Fingertips (May 2003)

 Geometry

Reflections and Kaledioscopes (September 2008)
Junior Architects: Designing Your Dream Clubhouse Using Measurement and Geometry (November 2003)
Rubber-Band Rockets (March 2002)
Bubble-Mania! (September 2001)
Midpoint Shapes (April 2000)
Are You Puzzled? (March 1999)

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