Come learn about a recent Colorado OER Grant project that represents a collaborative partnership between Metropolitan State University of Denver and Denver Public Schools. We will start by sharing lessons learned in establishing and maintaining a formal partnership agreement between a university and K-12 school district. The bulk of this presentation shares the outcome of our partnership: an OER video collection that highlights concrete examples of what translanguaging can look like in K-12 science classrooms. Translanguaging is a term that refers to the natural, dynamic languaging practices of multilingual individuals (García et al., 2017). Translanguaging pedagogies are teaching moves and materials that center translanguaging as a normal learning practice (Parra & Proctor, 2023) and explicitly welcome students to make sense of science using their full linguistic and multimodal repertoire, including home languages (Fine et al., 2023). Instructional videos portray 2nd - 6th grade classroom teachers planning for, enacting, and reflecting on translanguaging pedagogies during science lessons. The collection is useful for university teacher educators, in-service professional learning providers, and university and K-12 educators who are interested in expanding how they support teachers and linguistically diverse students. Attendees will learn about establishing a collaborative partnership between a university and K-12 district and discuss how they may establish their own partnerships with K-12 districts. Attendees will also understand translanguaging theory and pedagogies, watch and reflect on an instructional video, and plan how to use the OER video collection in their contexts.