High - quality collaboration benefits teachers and students

Using sophisticated statistical analyses, researchers examined individual teacher-level and school-level collaboration to understand the nature and effects of teacher-toteacher collaboration in instructional teams. When teachers engage in highquality collaboration that they perceive as extensive and helpful, there is both an individual and collective benefit. High-quality collaboration in general and about assessment in particular among teachers is associated with increases in their students’ achievement, their performance, and their peers’ students’ achievement.