This Project Grant from the National Science Foundation's STEM Education program provides $721,534 to the University of Maryland, College Park from September 2022 through August 2025 to develop curricular modules and teacher training materials focused on integrating computer science into linguistically inclusive, transdisciplinary STEM instruction at the elementary school level. Specifically, the award supports a research-practice partnership team in modifying existing lesson plans to include more environmental sustainability and computer science content, and piloting the revised lessons with teachers serving English learners. The team will also develop an instructional model for professional learning on transdisciplinary STEM and computer science integration, which will be incorporated into a permanent University of Maryland course for in-service K-12 teachers. All materials and the professional development model will be published online and disseminated to support sustainable impacts. The project aims to expand access to age-appropriate computer science education while addressing complex issues like environmental sustainability through a transdisciplinary approach combining multiple STEM disciplines.