VANDERBILT UNIVERSITY

In June of 2010, we began an education technology development project called Helping At-risk students Learn Fractions (HALF). The goal of the HALF project is to develop instructional tools for classrooms that help struggling students reach competent levels of performance in fractions. Toward that end, we developed two products: a technology-enhanced fractions intervention and a diagnostic assessment. We designed both products to be compatible with mobile technology such as the iPad... At the beginning of the HALF project, we began developing a diagnostic fractions assessment. We tested the assessment in a wide range of classrooms. During the testing process, we learned that many teachers who were not planning to implement the HALF intervention in their classes valued the data they received from the assessment. We also learned that many other researchers who are not part of the HALF project are in need of a reliable measure of students' understanding of fractions. For these reasons, we..