I would like to enable my students to answer using more complicated expressions.
This currently is made out of two parts:
1) I would like to set the default questions behavior to alow floating point numbers.
2) I would like to alow students to use complicated expressions in thier answers. The reason for this is mainly that I use my home-made units-testing answers, so I need my students to be able to type in the units, some of which are three letters (or even 4 letters) long. I know I can alow them specific words in each question, but this just wouldent do, as it requiers a long list of allowed words to be copied to each question and there are to many chanses for errors.
So I would like to do one of two things - either have some global list of alowed words that can be used in all of the questions on my moodle environament, or to just allow students to type in any three letter long expression.
What can I do?