Tammy Kolbe of the University of Vermont (IMAGE) University of Vermont Caption Tammy Kolbe, assistant professor of educational leadership and policy studies at the University of Vermont found a teacher's educational background in science was a key determinate of whether or not they used hands-on, inquiry-oriented instruction methods, offering new evidence for why U.S. students may lag behind their global peers in scientific literacy. Credit Credit: (Photo: David Seaver) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.