I consider as a low level of collaboration some simple exercises we do at labs. For example, a group of 2 or 3 students follow up some instructions given to accomplice an exercise and complete the datasheets with the measurements. Because all the steps are kind of defined it is more like mechanic movements than collaboration. 

From the other side, as a high level of collaboration I regard experiments, let’s say, from automation installations. An everyday life problem is given, the students, working at groups of 4 or 5, have to share the work need to be done, have to make the drawings, simulate them, and if it works build the installation, test it and finally present their work at the classroom.  I find this kind of learning activity to be high level of collaboration because from the begging they have to work together to find the solution of the problem, to make the drawings, find out what kind of components needed after research so they can pull together the installation. Every team has to talk about it, take decisions and undertake their responsibilities.