This study aimed to add to the growing base of knowledge about teachers’ engagement with assessment data and their motivation for classroom assessment. The findings settled into four main categories: (1) teachers use for learning assessment to improve student achievement, (2) an imbalance of formative assessment – assessment as learning was not used consistently, (3) inconsistent formalization of observation into meaningful assessment data, and (4) the tension between internal and external motivators for student assessment. The author concludes with some recommendations for teacher preparation programs, professional development for teachers and school and district administration.