The Assessment-to-Instruction (A2i) Professional Support System has been shown to be effective in improving literacy proficiency among young readers by combining data-driven technology with professional development (PD) activities to help teachers provide personalized literacy instruction. To identify efficient ways to expand the reach of A2i,…

Formative assessments--assessments that measure what students do and do not know, so that teachers can modify their instruction accordingly--have been widely hailed as a potential vehicle for improving student achievement. Yet little solid research evidence exists about their effectiveness, especially in reform-rich school districts. This study…