Public teachers in Los Angeles are planning to stage a citywide strike today, demanding better pay, more funding for school support staff, smaller class sizes and a cap on the number of charter schools in the district. The strike, initially planned for last week, was put on hold, but the teachers’ union—United Teachers Los Angeles—and district leaders failed to reach an agreement in their ongoing negotiations. The union represents over 30,000 members. This will be the first such strike in nearly 30 years.