The Two-way Immersion in Elementary School Program (TIES) aims to increase the access and use of World Language instruction in order to support academic success, achievement, and post-graduation opportunities for students in Harford County Public Schools (HCPS). With this grant, HCPS will implement a two-way immersion program to be housed at Emmorton Elementary School in Bel Air, Maryland using a phased approach. Of our military-connected schools, Emmorton has the most diverse EL population within the district. To best serve the needs of our community, multiple language offerings are the long-term goal for sustainability. Once students have acquired the skill of another language, it must be developed rigorously. To combat potential learning loss from the elementary to secondary school World Language program, secondary students (at Bel Air Middle School) will have the opportunity to continue World Language learning through multiple discipline classes being offered in Spanish. This opportunity promotes the development of biliterate students through incorporating World Language across content areas. A consulting partnership with Participate Learning will support programmatic initiatives. Additionally, the project plans to add professional development to elementary teachers. Teachers will receive professional development on curriculum and how it aligns with current HCPS content curriculum, along with best practices for instructing students in a two-way immersion program. Students will continue to be encouraged to work towards the Seal of Biliteracy throughout their time in HCPS, through advanced assessments and application of the target language, which will enhance their choices for post-secondary opportunities.