Analyzing student work for error patterns (such as on a diagnostic test) and then providing timely, specific, and meaningful intervention will decrease the probability that the errors will be repeated in the future. Taking into account academic research on how students learn, Spangler provides a practical intervention model and specific hands-on materials for teachers to use when working with the many students who struggle with fractions. The step-by-step intervention strategies illustrated in this book will result in improved student performance and improved student dispositions towards mathematics. It will contain the following elements:Reproducibles for fully functional diagnostic testsPractice pages for exercises keyed to the diagnostic tests and error patterns, and pages to practice alternative algorithms and estimationTeacher resources for hands-on activities, game sheets and pieces, and more