As assessment has become increasingly important, frequent, and consequential in all aspects of education, many experienced language educators find themselves needing to develop their knowledge and abilities in three areas in order to conduct classroom-based assessment effectively: (a) increasing their professional knowledge and abilities, (b) connecting classroom assessments to relevant policies; and (c) utilizing assessment to promote learning. Teacher educators, program administrators, and researchers need to help language teachers to become familiar with, use, and further develop the broad range of resources, principles, practices, and research findings that have recently emerged about classroom assessment