Grounded in the Science of Learning and aligned to MTSS Tier 1, 2, and 3 principles, the IDIM designs teacher and leader professional learning, builds regional capacity for instructional implementation, and uses student data, observation evidence, and stakeholder feedback to drive continuous improvement in instructional design and implementation so more students master grade‑level content with fair access. Mission: The Instructional Design and Implementation Manager (IDIM) - Mathadvances student achievement by designing high‑quality instructional materials, resources, training and supports (with the degree of authorship varying by subject) and by leading high‑fidelity implementation of network curriculum across regions.