Parents, students and teachers can speak up about what’s working and what’s not working in public schools Wednesday in a forum on education.

A national radio program, Tell Me More, is coming to Miami and will broadcast a show dedicated to education. Hosted by Michel Martin, the show will feature heavy-hitters in the debate, including U.S. Secretary Arne Duncan, his predecessor Margaret Spellings, former Washington D.C. Public Schools Chancellor Michelle Rhee and Miami-Dade schools Superintendent Alberto Carvalho.

The forum has already started online.

On Twitter, hundreds of people are having conversations on education, using the hashtags #npredchat and #IsYourSchoolBroken. The hashtags have popped up on the feeds of some 9 million users.

Hialeah Senior High teacher Roxanna Elden, author of See Me After Class: Advice for Teachers by Teachers, has been tweeting her thoughts and will join the show Wednesday afternoon to talk about the teaching profession, which has been compared to “a bucket with a hole in it.”

“Half of all teachers leave the profession by the end of year five, and half of all inner-city teachers leave within three years,” Elden said. “We hear a lot about the test score gap between high- and low-income students, but there is also a huge teacher experience gap. Students at low-income schools are twice as likely to have a beginning teacher in the front of the classroom. To find out how to best support teachers, you have to talk to teachers.”

Expect discussion on testing, charter schools, online education and more.

Other guests include former Assistant Secretary of Education Diane Ravitch, who’ll talk about why her stance on testing has changed, and Salman Khan, who started the popular online Khan Academy.

StateImpact Florida teamed up with the national program for the show, which will broadcast live from 11 a.m. to noon Wednesday on WLRN 91.3 FM.