From the introduction: "The overall aim of the EIC investment is to increase district capacity to implement high-quality middle years math curricula as part of a Coherent Instructional System to accelerate learning for students who are experiencing poverty, Black, Latino/a, and/or English Learner (EL)-Designated (“priority students”). As a Learning Partner, NIRN seeks to support partnerships between Providers and Local Education Agencies (LEAs) in their implementation and measurement efforts, as well as to collect and study data to answer the investment’s learning questions within the cohort wide learning agenda."