What’s causing teacher shortages in California?Michigan State University researcher Katharine O. Strunk helps answer that question as part of a sweeping report on public education in the state.Getting Down to Facts II, released on Sept. 17, is intended to help policymakers make more informed decisions across a range of issues affecting California’s 6.2 million students. Strunk headed up the workforce-related studies in the project, co-authored a research brief on teacher supply and co-authored one of the 36 technical reports.