WBEZ brings you fact-based news and information. Sign up for our newsletters to stay up to date on the stories that matter.Chicago Public Schools are at a critical moment. CPS took out more than 700-million in high-interest bonds last week, and they’re talking about 100-million in cuts. Meanwhile, the teachers union is talking about a possible strike, and student numbers continue to decline. As this all unfolds, Noble, Chicago’s largest charter school network, keep moving forward with expansion plans. Catalyst associate editors Melissa Sanchez and Kalyn Belsha take us inside the Noble charter network, where one out of every 10 kids in the CPS system get their education.