Denver teachers are on the brink of a strike. Here's how we got here and what could be next.

Chalkbeat: For the first time in 25 years, Denver teachers are fed up enough to walk out.

Last week, 93 percent of Denver Classroom Teachers Association members who voted supported going on strike. The vote came after teacher pay negotiations between the teachers union and the school district broke down Jan. 18, leaving the teachers without a contract that governs the district’s complicated salary-and-bonus system.

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