Business leaders in Arizona cannot find the science, technology, engineering and mathematics (STEM) talent they need to stay competitive. Students' lagging performance in K-12 is a critical reason why. The good news is that the nation's most effective STEM education programs can help turn the tide. Arizona students have already made real progress in math over the past decade. Yet not enough Arizona students, least of all minorities, have the chance to learn challenging content to prepare them for college and careers, and math and science teachers say they lack the resources they need. In addition, science does not yet seem to be a priority in Arizona. Students spend little time on science in elementary grades.