**FEATURES** |

Mathematics Workshop - Mathematics Class Becomes Learner Centered
*Daniel Heuser* Presents the idea of a mathematics workshop and teaching technique that employs student choice, use of manipulatives, and reflection. Shares the research base underlying mathematics workshops and describes how to conduct one. |

A Teacher's Tryangles
*Connie Yarema, Rhonda Adams and Rachel Cagle* Describes a teacher's mathematics exploration in a professional development setting to exemplify the ideas of the Professional Standards for Teaching Mathematics. |

The Wonderful World of Digital Sums
*Martin Bonsangue, Gerald Gannon, and Karen Watson* A lesson using digital sums that allows teachers to assess students' understanding of reasoning, arithmetic, and geometry. |

Why Are Some Solids Perfect? Conjectures and Experiments by Third Graders
*Richard Lehrer and Carmen Curtis* Describes how children searched for Platonic solids and constructed a precise definition to classify these solids. |

Math Curse or Math Anxiety?
*Vanessa Stuart* Explores the phenomenon of math anxiety in a group of elementary school students. Discusses strategies to reduce math anxiety. |

How Many Spots Does a Cheetah Have?
*Kristine Reed* First graders' mathematical investigation of the number of spots on a cheetah. Young children invented counting and estimation strategies, and a spirit of mathematical inquiry grew in the classroom. |