The subject content has been split into three sections as follows: - Core technical principles: new and emerging technologies; energy generation and storage; developments in new materials; systems approach to designing; mechanical devices; materials and their working properties. - Specialist technical principles: selection of materials or components; forces and stresses; ecological and social footprint; sources and origins; using and working with materials; stock forms, types and sizes; scales of production; specialist techniques and processes; surface treatments and finishes. - Designing and making principles: investigation, primary and secondary data; environmental, social and economic challenge; the work of others; design strategies; communication of design ideas; prototype development; tolerances; material management; specialist tools and equipment; specialist techniques and processes.