Results from research indicate writing is a critical skill linked to several academic outcomes. To promote improvements in writing quantity and quality, intervention might target increasing students' academic engagement during time designated to practice writing. The purpose of this study was to implement an evidence-based classwide behavioral intervention, the Good Behavior Game (GBG), during daily writing practice time in two classrooms. Participants (n = 45) included students in a Grade 1 and Grade 2 class enrolled in an elementary school in a large suburb in the northeast U.S. Findings based on visual analysis and multilevel modeling indicate that students, on average, wrote more words (quantity) and more correct writing sequences (quality) when the GBG was played versus when it was not. Implications include the need for replication studies to extend findings and explore how school psychologists might consider the use of behavioral interventions to promote improved engagement and academic output in the classroom.