What should a teacher do with assessment data gathered during an instructional unit?

The best approach for a teacher with assessment data gathered during an instructional unit involves reflecting on the effectiveness of the lessons taught. This allows the teacher to analyze what aspects of their teaching were successful and which areas may need improvement. By engaging in reflection, a teacher can adjust future instructional strategies, provide targeted support to students who may be struggling, and enhance the overall learning experience.

While other options such as determining final grades, grouping students differently, or creating extension activities could be valid uses of assessment data in their own right, none encompass the reflective practice that is essential for continuous improvement in teaching and student learning outcomes. By prioritizing reflection, educators can foster a deeper understanding of their students' needs and adapt their instructional methods accordingly.