I have done lots of GR and love it I even used to write the plans for the CT as she knew that it was a passion of mine.
If done properly it is a fantastic learning tool, but it is not easy and training was given to all our staff at INSET days on how to do it right. It was also monitored closely and all staff observed carrying it out.
We still train new members of staff now by sending them aaround the classes just watching how different sessions are done.
It is quite a tall order to do it every day though, and 20 mins is not much time to get a really good discussion going. We tend to have 45 - 60 minute sessions once a week and the planning is for a 2 week period.
Carefull grouping is also required as well to make it even more benificial.
Let me know if you have any specific questions and I will try and help as I am a big fan of this if it is done properly.
