A. Design in theory
A1.1 Ergonomics
A2.1 User-centred research methods
A2.2 Prototyping techniques
A3.1 Material classification and properties
A3.2 Introduction to structural systems (HL only)
A3.3 Introduction to mechanical systems (HL only)
A3.4 Introduction to electronic systems (HL only)
A4.1 Manufacturing techniques (HL only)
B. Design in practice
C. Design in context
A3.3.1 Types of motion
A3.3.2 Input–process–output systems
A3.3.3 Mechanical advantage
A3.3.4 Changing motion in mechanical systems
A3.3.5 Combining motion types
A3.3.6 Gear systems
A3.3.7 Pulley systems
A3.3.8 Cams and motion
A3.3.9 Levers and classes
A3.3.10 Linkages