Central to evolution is the concept of a common ancestry from which all life has emerged over immense time scales, but learning and teaching temporal aspects of evolution remain challenging. This study investigated students' interpretation of evolutionary time when engaging with a multi-touch tabletop application called DeepTree, a dynamic…

Presents two studies of the nature of science educators' use of the Internet and electronic resources and the environment in which that usage takes place. Includes telephone survey interview schedule and Internet survey instrument. (Author/MKR)