According to Wilbert McKeachie in McKeachie’s Teaching Tips: Strategies, Research, and Theory for College and University Teachers, you can use this as an opportunity to model how a professional in your field approaches a problem. You might:
- think out loud to model your thought process
- identify the resource(s) you would consult to find the answer
- inform the student that you will get back to them with an answer and be sure to do so
Additional Resources / Ideas
- Listen to Eric Schwabe as he describes such a moment in his classroom; see the “Challenges – Not All Answers” clip at http://teachingcommons.depaul.edu/Videos/oral_histories/schwabe.html
- On Answering and Asking Questions – see especially Section II: http://www2.honolulu.hawaii.edu/facdev/guidebk/teachtip/askquest.htm