March 7, 2012 6:30 pm Teacher Shortage Could Loom in California As many teachers near retirement this year, California could end up without enough teachers to staff our classrooms. NBC Bay Area’s Kris Sanchez explains what the teacher retirement numbers mean. US & World Videos 2:48 Forecast: Gradual warming trend 1:25 Bay Area high school seniors honored with Dave Goldberg Scholarship 1:10 Bay Area app monitors problems for people living with Parkinson's 0:26 Kaiser Permanente data breach may have affected millions 1:35 Kari's forecast: Gradual warming trend