Thousands of teachers joined Facebook groups to strike. Now they're revisiting them for support and guidance as schools remain shuttered and classes continue online.

5:30am PDT - May 6th, 2020    classroom - Business Insider

• The "Red for Ed" wave of teacher activism swept the country over the past two years, with teachers asking for higher wages, better funding, and increased support staff.
• The fight for better pay led to Facebook groups of teachers — one group,…