Being challenged by opposing views in a controversial discussion can stimulate the production of more elaborate and sophisticated argumentations. According to the model of argument reappraisal (Leitão, 2000), such processes require transactivity, meaning that students do not only give reasons to support their own position (e.g., pro/contra…

Rubrics have become popular tools for assessing student writing both in classroom and standardized testing environments. Rubric construction and efficacy, however, is a topic that has been largely sidestepped in the literature and in teacher professional development. Composing an effective rubric--particularly for instructional or formative…