The Texas Education Agency (TEA) is requesting responses from contractors for three unique projects in this procurement cycle. 1. Project 1 is requesting responses from contractors who have existing content to support the procurement, sourcing, development, and customization of fully developed grade appropriate High-Quality Instructional Materials (HQIM). 2. Project 2 is requesting responses from contractors to develop custom built high-quality Tier 1 instructional materials. 3. Project 3 is requesting responses from contractors to review and customize already developed Core and Supplemental Tier 1 Instructional Materials for Texas students to be part of OER Tier 1 HQIM for PreK-12 in accordance with TEA-determined priorities and timelines.