National & International

Member, International Committee: Mathematics, Education, and Society, 2019–present link–>
Director, Equity and Social Justice Working Group, Mathematics Teacher Education Partnership (MTE-P),
    2017–present link–>
Advisory Board, Technology-Rich Units for Future Secondary Teachers: Forging Dynamic Connections
    Between Geometry and Functions
, North Carolina State University, 2017–2020 link–>
Member, Regional Advisory Committee, Eighth International Mathematics Education and Society (MES)
    Conference, Portland, OR, 2013–2015
Program Chair, American Education Research Association Special Interest Group: Critical Educators for
    Social Justice
, 2009–2011
Delegate, Conference Board of Mathematical Sciences Forum on Content-Based Professional 
    Development for Teachers of Mathematics, Reston, VA, 2010

Mathematics Teacher Education Partnership, 2014–present link–>
Association of Mathematics Teacher Educators, 2008–present link–>
TODOS: Mathematics for All, 2002–present link–>
Benjamin Banneker Association, 2000–present link–>
National Council of Teachers of Mathematics, 1992–present link–>

Series Editor, Studies on Mathematics Education and Society. Open Book Publishers, 2020–present
Series Editor, Lessons to Explore, Understand, and Respond to Social Injustice. Corwin Press, 2020–2021
Editorial Board, Journal of Urban Mathematics Education, 2019–present link–>
Editor, The Lighthouse Almanac, 2017–present link–>
Editor, Proceedings of the Seventh Annual Mathematics Teacher Education Partnership Conference,
    2018 link–>
Editor, Proceedings of the Sixth Annual Mathematics Teacher Education Partnership Conference,
    2017 link–>
Editor, Proceedings of the Fifth Annual Mathematics Teacher Education Partnership Conference,
    2016 link–>
Editor, Monograph: Equity in Mathematics Education, The Mathematics Educator, Vol. 15, 2005 link–>
Editor, The Mathematics Educator, Vols. 12–13, 2002–2003 link–>

State & Regional

Member, Steering Committee, Launch Years Initiative, GA Department of Education, 2020–present
Member, Georgia Mathematics Advisory Council, GA Department of Education, 2020–present
Member, Metro P–20 Collaborative, 2020–present
Reviewer, Mathematics Standards Review, GA Department of Education, 2019–2020
Co-Director, MTEP Team Georgia (4 institutions), the Mathematics Teacher Education Partnership,
Co-Director, MTEP CSU (22 institutions) of the Mathematics Teacher Education Partnership, 2014–2016
President, Greater San Diego Mathematics Council, 2011–2013
Equity Committee, California Mathematics Council, 2010–2013 

University, College & Department

Centers and Institute Committee (CIC), Office of Academic Affairs, 2019–present
Information Technology Advisory Committee, 2018–present
Department Promotion & Tenure Committee, 2018–2019
Departmental Faculty Council, 2017–2019
Faculty Search Committee – Elementary Education (3 positions), 2017–2018
Director, BSEd & MAT Secondary Mathematics Education programs, 2016–present
Academic Appeals Committee, 2016–2018