Here are just some ideas to get you started:
- If you have no idea of the answer (taken from Prof. Smith’s 22.251 slides 2013 fall):
- Say so, don't bs.
- Start with something related that you know of, describe the process you would use to get the answer, and regain your composure and confidence.
- Be able to estimate the order of magnitude of quantities. Be careful about the units. Be careful about the sign (e.g., positive vs. negative temperature coefficients). Good examples: first day exams from 22.211(fall 2011), 22.251 (fall 2013).
- Practise speaking in front of people loudly and clearly with confidence. Practise how to handle a question that you have not though of before. Practise how to break a big question apart into several points to attack.