Students choosing IB Design Technology at Higher Level (HL) often know that the workload is heavier, but they are not always sure why. The difference is not just more hours or longer exams. HL students study additional topics and explore familiar ideas with much greater depth, technical accuracy, and evaluation.
Understanding these extra HL topics helps students decide whether HL is the right choice and prepares them to revise more strategically.
How HL Builds on SL Content
IB Design Technology HL includes all SL content, but extends it in three main ways:
- Greater technical depth
- More complex systems thinking
- Stronger emphasis on justification and evaluation
HL students are expected to make connections across topics and explain how and why design decisions work, not just what was done.
Structural Systems (HL Only)
One of the key additions at HL is structural systems.
Students learn:
- How forces act on structures
- The role of tension, compression, and load distribution
- How structural choices affect performance, safety, and sustainability
In exams, HL students may be asked to evaluate structural decisions in real products or justify why a particular system is appropriate for a specific use.
Mechanical Systems (HL Only)
HL students also study mechanical systems, which introduce more technical reasoning.
This includes:
- Levers, gears, cams, and pulleys
- Mechanical advantage and efficiency
- How mechanical systems transfer and control motion
