Denver school leaders and teachers are set to resume negotiations to end a strike over pay.

Negotiations planned for Tuesday come amid a swell of educator activism that has affected at least half a dozen states over the past year.

The strike affecting about 71,000 Denver students started Monday after a round of last-minute talks broke down over the weekend.

It comes about a year after West Virginia teachers launched the national "Red4Ed" movement with a nine-day strike in which they won 5 percent pay raises. Los Angeles teachers went on strike last month.

The two sides in Denver disagree on pay increases and bonuses for teachers in high-poverty schools and other schools the district prioritizes. Teachers want lower bonuses to free up money for better overall salaries.