¹Rebecca David, “National Charter School Management Overview, 2016–17,” Washington, D.C.: National Alliance for Public Charter Schools, 2018. https://www.publiccharters.org/our-work/publications/national-charter-school-management-overview-2016-17

²David, “National Charter School Management Overview.” https://www.publiccharters.org/our-work/publications/national-charter-school-management-overview-2016-17

³Ted Kolderie, “Ray Budde and the Origins of the ‘Charter Concept,’” Education Evolving, Saint Paul, Minn.: Education Evolving and Center for Policy Design, 2005. http://www.educationevolving.org/pdf/Ray-Budde-Origins-Of-Chartering.pdf

⁴Jeffrey R. Henig, Spin Cycle: How Research Is Used in Policy Debates: The Case of Charter Schools, New York: Russell Sage Foundation, 2008

⁵Minnesota Legislative Reference Library, “Minnesota Issues Resource Guides Charter Schools,” Saint Paul, Minn.: Minnesota Legislative Reference Library, 2018. https://www.leg.state.mn.us/lrl/guides/guides?issue=charter

⁶Education Commission of the States (ECS), “Charter Schools: How Is the Funding for a Charter School Determined?,” Denver, Colo.: ECS, 2018. http://ecs.force.com/mbdata/mbquestNB2C?rep=CS1716

⁷U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, Digest of Education Statistics: 2017, chap. 2, table 216.20, “Number and Enrollment of Public Elementary and Secondary Schools, by School Level, Type, and Charter and Magnet Status: Selected Years, 1990–91 Through 2015–16,” Washington, D.C.: National Center for Education Statistics, 2017. https://nces.ed.gov/programs/digest/d17/tables/dt17_216.20.asp?current=yes

⁸U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, “The Condition of Education: Public Charter School Enrollment,” Washington, D.C.: National Center for Education Statistics, 2018. https://nces.ed.gov/programs/coe/indicator_cgb.asp

⁹U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, “Number and Enrollment of Public Elementary and Secondary Schools.” https://nces.ed.gov/programs/digest/d17/tables/dt17_216.20.asp?current=yes.

¹⁰U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, “Number and Enrollment of Public Elementary and Secondary Schools.” https://nces.ed.gov/programs/digest/d17/tables/dt17_216.20.asp?current=yes

¹¹U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, Digest of Education Statistics: 2017, chap. 2, table 216.30, “Number and Percentage Distribution of Public Elementary and Secondary Students and Schools, by Traditional or Charter School Status and Selected Characteristics: Selected Years, 2000–01 Through 2015–16,” Washington, D.C.: National Center for Education Statistics, 2017. https://nces.ed.gov/programs/digest/d17/tables/dt17_216.30.asp

¹²Center for Research on Education Outcomes (CREDO), “Charter Management Organizations 2017,” Stanford, Calif.: CREDO at Stanford University, 2017. http://credo.stanford.edu/pdfs/CMO%20FINAL.pdf

¹³U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, ”Number and Percentage Distribution of Public Elementary and Secondary Students and Schools.” https://nces.ed.gov/programs/digest/d17/tables/dt17_216.30.asp.

¹⁴CREDO, “Charter Management Organizations 2017.” http://credo.stanford.edu/pdfs/CMO%20FINAL.pdf

¹⁵ECS, “Funding for a Charter School.” http://ecs.force.com/mbdata/mbquestNB2C?rep=CS1716

¹⁶National Alliance for Public Charter Schools (NAPCS), “Kentucky,” Washington, D.C.: NAPCS, 2018. https://www.publiccharters.org/our-work/charter-law-database/states/kentucky

National Alliance for Public Charter Schools (NAPCS), “Alabama,” Washington, D.C.: NAPCS, 2018. https://www.publiccharters.org/our-work/charter-law-database/states/alabama

¹⁷ECS, “Funding for a Charter School.” http://ecs.force.com/mbdata/mbquestNB2C?rep=CS1716

¹⁸U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, “Number and Percentage Distribution of Public Elementary and Secondary Students and Schools.” https://nces.ed.gov/programs/digest/d17/tables/dt17_216.30.asp

²⁰U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, Digest of Education Statistics: 2017, chap. 2, table 216.90, “Public Elementary and Secondary Charter Schools and Enrollment, by State: Selected Years, 2000–01 Through 2015–16,” Washington, D.C.: National Center for Education Statistics, 2017. https://nces.ed.gov/programs/digest/d17/tables/dt17_216.90.asp

²¹U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, “Public Elementary and Secondary Charter Schools and Enrollment.” https://nces.ed.gov/programs/digest/d17/tables/dt17_216.90.asp

²²Rebecca David, Kevin Hesla and Susan Aud Pendergass, “A Growing Movement: America’s Largest Public Charter School Communities,” Washington, D.C.: National Alliance for Public Charter Schools, 2018. https://www.publiccharters.org/sites/default/files/documents/2017-10/Enrollment_Share_Report_Web_0.pdf

²³U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, “Number and Percentage Distribution of Public Elementary and Secondary Students and Schools.” https://nces.ed.gov/programs/digest/d17/tables/dt17_216.30.asp

²⁴U.S. Department of Education, Institute of Education Sciences and National Center for Education Statistics, “Number and Enrollment of Public Elementary and Secondary Schools.” https://nces.ed.gov/programs/digest/d17/tables/dt17_216.20.asp?current=yes