Since its inception, DSD has been committed to using research-based, best instructional practices. The Common Core State Standards and the Christina School District curriculum are used in the development of each student’s Individual Education Plan (IEP) and to guide instruction for each student. ASL development classes at DSD are designed to provide enrichment and instructional activities regarding the features and uses of ASL. Students engage in ASL handshape study and activities; the study and development of ASL poetry; the study and application of ASL non-manual features such as facial expression and tone; and the practice / development of expressive and receptive ASL skills.