The purpose of this study was to understand the nature of writing instruction across time and grade bands. We used quantitative and qualitative analyses of teacher interviews and video records of classroom instruction of English language arts writing instruction in 97 fourth- through eighth-grade classrooms in 2010 and 2018. Video records showed a decline in writing instruction across time and grade bands. Teacher lessons focused on the first five Common Core Writing Standards with little attention to the latter five. The lessons included aspects of a writing process approach that used instructional scaffolding, models, student practice, and teacher feedback. Lessons were less likely to include the use of authentic texts, text analysis, and student discussion. Teacher interviews pointed to curricular constraints, a view of writing as peripheral, and comfort with teaching writing as hindrances to quality writing instruction. These findings demonstrate a need for curricular and instructional resources to support teachers in offering consistently quality writing instruction.