
This week, I hosted four colleagues for a full day of hands-on learning intended to help novice geeks to get the most of their Mac computers.  Contrary to traditional large group PD, this audience had the luxury of going in any of a number of directions, and could do so at a comfortable pace. 
I fielded a number of queries about this informal PD through via 
Twitter, so here are my top 10 discoveries from a day of learning with friends:
1] You can use a large screen television as a projection device.
2] Although the operating system is simple to navigate, there are simple tricks that you may take for granted that may be greatly valued by your colleagues.
3] Small changes to System Preferences can allow any user to be more productive.
4] Individual needs are much easier to address in a small group meeting than they are in traditional PD.  (I.e., A teacher with a new external hard drive invited us to explore how to use 
Time Machine to backup files.)
5] If you use 
Skitch, ctrl+shift+5 is the new ctrl+shift+4
6] Teachers can have fun with 
Skype by contacting folks in the same room; and you can demonstrate the power of this collaborative tool by inviting guest experts to dial in to share their expertise.  Thanks 
@BrendaSherry, 
@KellyPower & 
@IainRobertson!
7] 
Delicious is a great tool to introduce teachers to the power of the hive mind.
8] Engaging in conversation within a PD session is a good thing.  How else can folks teach one another and share their giddy love of learning?  
9] This type of learning should be taking place on a regular basis.  The consensus from participants was that we should schedule follow-up meetings.  First on our next agenda: 
"So, What happened?"10] Teacher-learners are happy to share food in exchange for tech tips!