Formula Based Questions

[darrinj]

I want to ask students to report a measurement they would have taken during lab – they will be expected to take several measurements of several items but I’ll only ask about one. That sounds really easy, and is, if I wanted to create lots of questions where the only difference is which item I want them to report on changes. But, I don’t want to create lots of questions. That’s where the formula style question could come into play.

I would need to have two variables in the question, A might represent the item ID number, and B its correct measurement. See the possible results table below as an example:

 Item ID#               Measurement

A                             0.250

B                             1.125

C                             1.500

D                             2.250

The question might look something like:
What is the length of the aluminum bar labeled [ID]?

The correct response would be determined from the table.

Any ideas on how I might do this?