The Latest on the Denver teachers strike (all times local):

11 p.m.

Denver teachers are set to extend their strike into a third day after negotiations with district leaders ended Tuesday night without a deal.

Tuesday's talks came a day after more than half of the city's teachers walked off the job amid a pay dispute. The negotiations, which are set to resume Wednesday, began with discussions over changing Denver's pay system to more closely resemble those in other districts that make it easier for teachers to advance in pay based on experience, education and training.

The two sides also 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.

The teachers' union and district leaders alternated meeting publicly and then took time to discuss proposals in private.

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3:30 p.m.

Denver teachers and district leaders are negotiating to try end a strike over pay with the help of a federal mediator.

Tuesday's talks come a day after over half of the city's teachers walked off the job. The negotiations began with discussions over changing Denver's pay system to more closely resemble those in other districts which more easily allow teachers to advance in pay based on experience, education and training. Both sides alternated meeting publicly and then taking time to discuss proposals in private.

The talks are scheduled to last into the evening.

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10:55 a.m.

Denver school leaders and teachers are back at the bargaining table as they try to end a strike over pay that has entered its second day.

Negotiations got under way Tuesday with the help of a federal mediator for the first time since talks broke down over the weekend.

The negotiating room at Denver's main library was packed with teachers wearing red. They broke out into chants from the picket lines as school district administrators entered to start the contract discussions with union leaders.

Teachers planned a march and rally downtown later in the day near the site of the talks.

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.

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8:20 a.m.

Denver teachers are back on the picket lines as union and school officials resume negotiations try to end a teacher strike over pay.

Talks are scheduled to resume at 10 a.m. Tuesday for the first time since talks broke down over the weekend.

The strike started Monday and all schools were open Tuesday. They are staffed by administrators, substitutes and teachers not participating in the strike.

The school district says preliminary reports show 58 percent of teachers stayed out of district-run schools on Tuesday, slightly more than on the first day of the strike Monday.

There are 71,000 students in district-run schools.

Another 21,000 are enrolled in charter schools unaffected by the strike.

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11:10 p.m.

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.