SUMMARY:This year's AATT Roundtable at MESA 2020 will focus on Materials Development & Design. A main problem for Turkish language instructors, and LCTL instructors in general, is the fact that there is a shortage of good quality teaching materials. Language teaching materials that are based on ACTFL's Standards for Foreign Language Learning and contain activities that foster and encourage meaningful communication in Turkish do not quite exist. Published materials for Turkish are usually outdated, do not include enough cultural information, and have only few communicative/performance-based activities, if at all, while supplementary materials are essentially nonexistent. Moreover, even the best textbook does not necessarily meet all the conditions in a language classroom, which is why instructors feel the need to explore teaching materials outside the textbooks and modify them according to their needs and the needs and profile of their students. Most Turkish teachers are thus faced with the need to create their own materials. However, instructors, especially those who are new to the field of language teaching, may find it difficult to know where to start. To address the challenges that Turkish instructors face in developing Turkish instructional materials, including testing materials, the AATT roundtable will bring together Turkish language teaching professionals to share best practices in the area of Materials Development & Design and promote a discussion of useful tools, ideas, and tips that are needed to create meaningful and useful materials for Turkish language instruction in the 21st century. Additionally, in order to equip students of Turkish with the skills and knowledge that is needed to succeed in complex life and work environments and achieve global competence, AATT formed a committee to revise its Language Learning Framework, which was prepared in the 1990s, in accordance with the Framework for 21st Century Learning and ACTFL guidelines. The AATT Framework committee just recently finalized its revisions and the new Language Learning Framework is sure to guide instructors of Turkish on how to tackle the task of developing and designing material for Turkish language instruction in the 21st century. Questions that may be addressed in the AATT Roundtable at MESA may include: What sources have been proven to be particularly helpful in developing and designing language materials? What are some ways instructors can utilize the media while developing and designing language teaching materials? What kind of language learning materials are especially needed to prepare students of Turkish for the 21st century?