Facing the threat of mass layoffs, larger class sizes and the elimination of myriad programs, thousands of California teachers are expected to take part in a weeklong series of rallies and sit-ins at the Capitol and throughout the state to protest possible spending cuts in the state budget.

The California Teachers Association, which is organizing the actions, is pressing Gov. Jerry Brown to back off his call for a special election and instead push Republican lawmakers to directly approve an extension of higher sales, income and vehicle taxes, which are due to expire at the end of June. Brown promised during his campaign last year that he would not raise taxes without going to the voters.

The rallies starting Monday are an escalation of efforts by the teachers association, which waited while Brown tried to negotiate a deal with Republicans to put his proposal before voters in June. Since that effort failed, the teachers are now delivering their message directly.