This research summary provides the key findings and interpretive summary--chapters 3 and 4--from the full report, "Reaching for Improvement: Teacher Evaluation and its Role in Instructional Improvement." The full report contains additional details on the context, methodology, and findings of this study. This document has minor differences to ensure clarity in its shorter form. This study examined teachers' experiences with instructional improvement in seven Chicago Public Schools from 2017-18 to ask: What organizational conditions and capacities supported evaluation-driven instructional improvement? [For the full Research Report, see ED623750.]