The current thrust in the field of education is to improve teachers' understanding of how research on best practices can improve student learning. The field of world language education introduces a double, perhaps a triple, bind: teachers must be able to design and deliver instruction that aligns with national expectations for developing students' language and intercultural abilities for success in the global workplace, yet in schools across America, all K-12 students do not have the opportunity to study languages, even though research supports their astonishing facility for acquisition. Schools and teachers without resources, including time to investigate and implement evidence-based best practices, are ultimately held accountable for student performance. If world language teachers are to advocate for languages, they must use their expertise and share evidence of their students' progress. The American Council on the Teaching of Foreign Languages (ACTFL) recently began development of...