The purpose of this assessment probe is to elicit students’ ideas about the properties of magnets. The probe is designed to find out how students would represent the poles of a broken magnet. It is best used with middle and high school students and works well as a discussion about the properties of magnets. If materials are available, consider demonstrating the probe scenario. A materials list, teacher notes, standards, assessment, safety notes, and references are provided. This book selection also includes the Table of Contents, Preface, Acknowledgments, About the Authors, Introduction, and Index.