Background: I teach Calculus at first year Engineering degrees in a large public University in Spain. I am introducing more and more active activities (no pun intended) so, to begin with, I want the students to do practical exercises. This is the right content to train since, in fact, the exam consists of several problems.
When I ask a student to write an exercise on the chalkboard (or even worse, I write it myself) I feel that I am teaching both the wrong format and the wrong skills, let alone having a terrible time management. So I think it is better if they all do the exercise on paper and then I could project one of them on the screen and grade/discuss it for everyone to see.
My question is not about the comparative learning effectivity of this technique (although any comments are appreciated) but I ask you to address my two insecurities:
Regarding the students, will they laugh at me as a complete technological dinosaur, as if I had intended to use the overhead projector (which, by the way, is still in the classroom)?
Regarding the management that should authorize the expense, can I use the argument that this technology is often used in top-tier Universities? Because I have no knowledge of anyone using it in the classroom, at least in my School.
So are document cameras often used in the classroom for projecting students' work?