Most science students readily understand that following fertilization, a single-celled egg must undergo multiple rounds of cell division to become a multicellular organism. This transformation is so universal among animal embryos that developmental biologists refer to the process with a single term: ''gastrulation.'' During gastrulation, many if…

In this paper, we will review and critique a package of instructional materials developed by a southern education consortium. The materials package is called "Active Learning with Technology," and it is one of only a few instructional packages designed specifically for teacher educators. There is an old rock and roll song from the…