Coach the group and players before you coach technique.
What this means is that you must use your coaching intuition to make sure that what and how you coach works for the players in your group.
Every group may be need to be coached differently and the technical elements wrapped up differently.
Age and attention level has a big influence on how you coach.
If your group struggles to focus then do exercises and play games which gets them active and moving and having fun.
Developing technique is never more important than the way the session is put together and tweaked to suit the groups learning ability and needs.