In this report, the authors use data from the American Instructional Resources Survey (AIRS) fielded in spring 2022 to kindergarten through 12th grade (K-12) math, English language arts, and science teachers to describe teachers' professional learning (PL) activities, with an emphasis on how much PL time was spent on various topics and activities. Although the AIRS largely focuses on using, adapting, and creating instructional materials, the 2022 AIRS also asked teachers how PL time was spent on various topics, including classroom management and supporting student mental health. This allows for the description of a broader variety of teacher PL activity. The authors also examine the extent to which teacher participation in PL translates to instructional efficacy, as measured by teacher reports of standards-aligned classroom practices and estimates of student achievement relative to grade level.