About 80 teachers from three public charter schools in Los Angeles ended their strike with progress made toward their demands.
The New York state legislature passed a bill that would make the use of state test scores in these evaluations optional, leaving the decision up to districts and making it subject to collective bargaining.
Denver teachers could head to the picket lines on Monday, unless the state intervenes.
Teachers are expected to ratify the tentative agreement and return to school on Wednesday.
As Los Angeles teachers remain on strike for a fifth day, some shared the real-world consequences of large class sizes and not having enough support staff.
Charter school teachers in Chicago plan to go on strike Feb. 5, and educators in Denver are also weighing a strike.
Tens of thousands of teachers, nurses, librarians, and counselors walked off the job Monday in the nation's second-largest school district, donning plastic ponchos in a chilly rainstorm to picket their schools for the first time in 30 years.
Tens of thousands of teachers in the nation's second-largest district will head to the picket lines on Monday to fight for smaller class sizes and more support staff.
United Teachers Los Angeles has pushed the teachers' strike to Monday after a series of legal battles with the district.
The Los Angeles teachers' union and school district will return to the bargaining table on Wednesday in a last-ditch effort to avert a strike.