Abstract: The Spectrum Year 9 Teacher File is the central resource from Spectrum Key Stage 3 Science. It is also available in adaptable form on CD. It covers in detail Units 9A-L of the QCA Scheme of Work, each of which is broken down into several Topics. Every Topic comprises: three sets of Learning Outcomes, suited to different pupils' abilities - main, support and extension; a Resource Map, outlining what is available in Spectrum to achieve the Learning Outcomes; and a set of activities. The file finishes with answers to the Class Book questions, a collection of activities based on the end of Unit summaries and mention of how Scientific Investigations are covered in the course. Teacher support is completed by the Technician Notes, Testmaker Assessment CD-ROM and web resources. Spectrum - support and inspiration for teachers and pupils.