Overview Oregon's Statewide Assessment System (OSAS) assesses students' mastery of Oregon's challenging academic standards. This course will equip participants with the tools to determine specific areas of English language arts (ELA) and mathematics within their systems that are working well, as well as identify those areas that provide opportunities for improvement. Turn OSAS test results into invaluable data that allow your systems to perform equitably and at the high levels Oregon students deserve. The course's five modules are designed to help participants gain a greater understanding of the following key concepts: