One of NASA's newest education publications made its debut at the arnual National Council of Teachers of Mathematics (NCTM) conference held in Orlando, Florida April 5-7. How High Is It? An Educator's Guide with Activities Focused on Scale Models of Distances was presented by Carla Rosenberg of the National Center for Microgravity Research at Glenn Research Center. Rosenberg, an author of the Guide, led teachers in several hands-on activities from the Guide. This image is from a digital still camera; higher resolution is not available.