Specifications include, but are not limited to: NISD is requesting to provide Pre-K – 12th grade Professional Development Services and Related Materials, as applicable, related to research-based instructional strategies, leadership, and educator growth as well as high-quality, tier-one instruction in the areas of Special Education, Physical Education, Gifted and Talented (GT), and Bilingual Services with a focus on TEKS (Texas Essential Knowledge and Skills) standards. Related materials include but are not limited to: testing materials, digital copies, software/online resources, teaching tools, workbooks, study guides, books, training consultants, and other professional learning services and support materials. Also include support materials to address the needs of all diverse learners to include, but not limited to, English Language Learners, Special Education, Dyslexia, 504, Individualized Education Plan (IEP), Pre-Advanced Placement, Advanced Placement, and advanced learning for GT students