This article takes you on a journey through the authors' school course unit, the "Variety of Life," which aims to unpick the idea of biodiversity and its many facets. The aims and principles of each teaching topic are defined, teaching activities suggested, resources described and the skills each topic develops listed. Whilst aimed at…

An individualized instructional development training program was developed that allows teachers to enter at several points and move through the instruction in a way that suits their own particular needs and challenges. The program was designed for implementation on the TICCIT computer controlled television system, although it could be adapted to…