The debate has reignited over how much Arizona spends on K-12 education. Should taxes be raised to help provide more funding for — in addition to teachers — new school construction, all-day kindergarten and refilling prior state investments that were cut during the Great Recession?

Dave Wells, research director for the nonpartisan Grand Canyon Institute, recently crunched the numbers and joined us to talk about how much money the state would actually need to achieve its K-12 reading level goals along with high school and college graduation rates.