How do you explain your bridge design to the judges?
Some contests ask for a design report or an interview. What judges ask, how to explain your choices, and how to talk about where your ideas came from.
Updated · 1 min read
Short answer: explain what your bridge does, why each choice was made, what you tested and what you changed. Judges care more about your understanding than a perfect result.
Questions judges often ask
- Which parts are in tension and which in compression?
- Why did you choose this shape?
- Where do you expect it to fail first, and why?
- What did your practice bridges teach you?
- How did you reduce the weight?
- Who designed and built it?
A simple structure
- The goal: span, load and what scores.
- The design: a sketch, with pushed and pulled members marked.
- The tests: results from your practice bridges, with photos of breaks.
- The changes: what you did differently and why.
- What you'd do next.
Say where your ideas came from
Some contests limit outside help, including AI tools, and ask you to say what help you used. Be honest and specific, and make sure every choice is one you can explain yourself. See using AI fairly.
Practice
Rehearse out loud with a teammate, and have someone ask the questions above. See testing records for the data to bring.