A recent independent evaluation by WestEd of Learning Forward's What Matters Now Network looked at the ways in which a structured, facilitated network provided support for state-level coalitions working with districts, schools, and educators to improve instruction and make progress toward achieving content standards. The network was facilitated by Learning Forward, used and taught the principles of improvement science, and was funded by the Carnegie Corporation of New York and the William and Flora Hewlett Foundation. The network operated from 2016 to 2021 and included multirole coalitions from three states: Maryland, Ohio, and Rhode Island. WestEd, an independent research firm, conducted a three-year evaluation of the What Matters Now Network to examine the impact of the network's design and facilitation as well as the results of data-informed improvement cycles focused on increasing teacher and student learning. In this article, Elizabeth Foster summarizes the methodology, findings, and implications of the study. [This article summarizes: Morgan, C. (2021, March). "Learning Forward What Matters Now Network: Year two formative evaluation report." WestEd. learningforward.org/networks/what-matters-nownetwork/.]