The set of appendices in this volume is a companion to the report "Federal Efforts Towards Investing in Innovation in Education Through the i3 Fund: A Summary of Grantmaking and Evidence-Building." The goal of the U.S. Department of Education's Investing in Innovation Fund (i3) was to build high-quality evidence about effective educational strategies and to expand implementation of these strategies. Between 2010 and 2016, i3 awarded 172 grants totaling $1.4 billion to universities, school districts, and private non-profit organizations. The i3 Fund intentionally awarded different types of grants either to develop and test new, innovative but as-yet-unproven strategies or to learn more about the circumstances under which previously tested strategies are effective. Grantees were required to fund independent evaluations that would meet high standards for quality. Appendices included in this document are: (1) Additional Details about the Investing in Innovation (i3) Fund Program; (2) Study Design and Methods; and (3) Supplemental Tables and Information on Study Findings.