Access to quality mathematics and science instruction is a key factor in preparing all students to compete in post-secondary education. Highly qualified pre-college math and science teachers are essential for preparing students who aspire to careers in science, technology, engineering, mathematics and medicine. As part of the efforts of major state universities to enhance the supply of secondary math and science teachers, the National Association of State Universities and Land-Grant Colleges (NASULGC) has developed the Science and Mathematics Teacher Imperative. Objectives of the Teacher Imperative are to leverage the growing interest in science teacher preparation by universities and build collaborations with key education and government leaders in states to collectively address this critical national problem. The Imperative has begun compiling substantial information on model university teacher preparation programs that involve science faculty. The program seeks to engage faculty further through efforts with professional societies such as the American Chemical Society and the American Physical Society.