This Data Note adds new insights from the American Educator Panels--comprised of English language arts (ELA), math, and science teachers--on their use of digital materials. Drawing on data from the spring 2019 American Instructional Resources Survey, researchers share the digital materials that ELA, math, and science teachers across the United States reported using regularly for instruction during the 2018-2019 school year. In addition to identifying the most commonly used digital instructional materials, researchers examine how teachers' use of these materials compares with their use of comprehensive curriculum materials, as well as teacher-reported barriers to digital material use. Finally, researchers explore several hypotheses regarding factors that might influence digital material use. [This report was prepared by the RAND American Educator Panels.]