Hi. I am a teaching assistent of the freshman level physics course in a university. I wrote a small piece of code which helps me to divide my students into groups. The criterion is that everybody will meet bright all new groupmembers, and the average score (from their former quizes) are roughly the same for each group. I thought this small tool may be also helpful for some of you, that's the reason I share it here. Thanks.
My code can be find in