%0 Journal Article %T Leadership Development Through Design and Experimentation: Learning in a Research¨CPractice Partnership %A Alison Fox %A Elham Kazemi %A Jessica G. Rigby %A Stephanie Forman %J Journal of Research on Leadership Education %@ 1942-7751 %D 2018 %R 10.1177/1942775118776009 %X A core function of district leadership is providing instructional vision and support for school leaders and teachers. In this article, a Research¨CPractice Partnership focused on the improvement of elementary mathematics teaching and learning provides the context to study leadership development. We examine the process of one design team within the Research¨CPractice Partnership consisting of district leaders and university researchers using organizational learning. We found that as the team iteratively negotiated the design and implementation of a practical measure aimed at assessing and improving elementary mathematics instruction system-wide, the teamˇŻs learning transformed the tools and routines of its work %K instructional leadership %K leadership and learning %K leadership for school improvement %K learning communities %K organizational theory %K problems of practice %U https://journals.sagepub.com/doi/full/10.1177/1942775118776009