schools Aspira Charter School (at Haugan) Bronzeville Lighthouse Charter School The Catalyst Schools Chicago International Charter School - Avalon/South Shore Campus Chicago International Charter School - Ralph Ellison Campus Chicago International Charter School -Wrightwood Campus Chicago Virtual Charter School Choir Academy Charter School of Chicago DuSable Leadership Academy of Betty Shabazz International Charter School Erie Elementary Charter School Galapagos Elementary Charter School Legacy Charter School Noble Street Charter School - Pritzker College Prep Campus Noble Street Charter School - Rauner College Prep Campus Noble Street Charter School - Golder College Prep Campus Noble Street Charter School - UIC College Prep Campus Noble Street Charter School - Gary Comer College Prep Campus Noble Street Charter School - Rowe-Clark College Prep Campus Noble Street Charter School - Johnson College Prep Campus Noble Street Charter School - Bulls College Prep Campus Perspectives Charter School – Calumet Campus Providence Englewood Charter School - Bunche Campus Barbara A. Sizemore Academy of Betty Shabazz International Charter School University of Chicago Charter School - Donoghue Campus University of Chicago Charter School – Woodlawn High School Campus UNO Charter School - Bartolomé de las Casas Campus UNO Charter School - Carlos Fuentes Campus UNO Charter School - Rufino Tamayo Campus Urban Prep Charter Academy for Young Men Young Women's Leadership Charter School Criticisms In 2005, the Chicago Teachers' Union's president, Marilyn Stewart, was uniformly negative in her assessment of Renaissance 2010, stating that "Chicago's charter schools had scores that were in the basement. [...] All Chicago-based charter schools had scores below the statewide average in third-grade reading, third-grade math, fifth-grade reading and eighth-grade math". A 2009 study by University of Chicago researcher Diane Whitmore Schanzenbach found more mixed results, that "test scores in the Renaissance schools slightly lagged those of students with similar backgrounds who attended neighborhood schools — though not to a statistically significant degree. But results were far from homogeneous, with some Renaissance schools posting decidedly stronger test scores compared to others." Schanzenbach further notes that new schools generally have higher hurdles to face than established ones, and that the best practices used in the Renaissance schools were "on the right track.” Another study released in 2009 by SRI International, a California-based independent research institute, indicated that Renaissance 2010 schools have performed about on par with Chicago Public School-owned schools, with potential for further improvements. Demonstrating the divisive nature of the Renaissance 2010 plan, proponents have