https://www.chalkbeat.org/posts/us/2017/12/12/when-union-protections-disappear-poor-schools-lose-teachers-new-research-finds/
Richard G
flipped into Educational Stories Worth Reading
https://www.chalkbeat.org/posts/us/2017/12/12/when-union-protections-disappear-poor-schools-lose-teachers-new-research-finds/