In this article, we discuss funky protractor tasks, which we designed to provide opportunities for students to reason about protractors and angle measure. We address how we have implemented these tasks, as well as how students have engaged with them.

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### Scott G. Smith

Suggestions for incorporating calculator programming into the mathematics curriculum.

## Quick Reads: Using Technology to Build a Pen for Browser

### a good idea in a small package

### Leigh Haltiwanger, Robert M. Horton, and Brooke Lance

Making mathematics meaningful is a challenge that all math teachers endeavor to meet. As math teachers, we spend countless hours crafting problems that will energize students and help them connect mathematical topics to their everyday lives. Being successful in our efforts requires that we allow students to explore ideas before we provide explanations and demands that we ask questions to promote a depth of thinking and reasoning that would not occur without such probing (Marshall and Horton 2009).

### Alfinio Flores

The striking results of this coin-tossing simulation help students understand the law of large numbers.

### Catherine Tabor

A programming activity helps students give meaning to the abstract concept of slope.

### Alison L. Mall and Mike Risinger

Our favorite lesson, an interactive experiment that models exponential decay, launches with a loud dice roll. This exploration engages students in lively data collection that motivates interest in key components of the Common Core State Standards for Mathematics: functions, modeling, and statistics and probability (CCSSI 2010).

### Jon D. Davis

Using technology to explore the coefficients of a quadratic equation leads to an unexpected result.

### Bruce Frahm

Four graphing calculator games to entice your students to learn mathematics.

### Jonathan D. Baker

The outcome distribution for rolling a single die is horizontal; for rolling a pair of dice it is a triangle. What happens when more than two dice are rolled? What happens when the die has other than six sides? These and other questions are answered in an accessible and useful treatise.

### Michael Dempsey

When understood and applied appropriately, mathematics is both beautiful and powerful. As a result, students are sometimes tempted to extend that power beyond appropriate limits. In teaching statistics at both the high school and college level, I have found that one of students' biggest struggles is applying their understanding of probability to make appropriate inferences.