This Harvard Chinese Language Curriculum website provides important resources that go along with the 12 textbooks in Harvard Chinese Language Series (HCLS). HCLS is built on a ground-breaking, multi-year work that incorporates the latest research in language pedagogy and aims to transform the practice of Chinese language teaching and learning in the U.S. and abroad. The series is informed by a coherent, overarching pedagogical framework, focusing on systematically moving students from one level to the next, covering five levels of Chinese instruction and ultimately helping students reach the ACTFL “Superior” (near-native) level of proficiency. The first lesson of each textbook (together with the text audio and Quizlet) is freely accessible to the public as a sample. The full version of the text audio and Quizlet are available for enrolled students only with password required.