Tens of thousands of Arizona teachers are poised to walk off the job this week to demand more funding for public education, an unprecedented action in this conservative state without many union protections.

Educators who are among the lowest-paid in the U.S. have organized weeks of protests seeking raises and a boost in overall school funding, culminating in a vote for the first-ever statewide strike.

It comes despite a plan from Republican Gov. Doug Ducey to increase teacher pay 20 percent by 2020. Teachers are concerned about a lack of stable funding and a failure to address other demands.

A grass-roots teachers group mobilized the #RedforEd campaign, with backing from the Arizona Education Association, the largest teacher membership group. But the association lacks the power to collectively bargain with school districts or require mandatory participation in this right-to-work state.

That has led to a disparity across school districts in how to handle the walkout and could lead to fallout for Arizona educators.

Here's a look at what's happening: