Blocking notation

[theatrebird21]

I'm looking for a good description of writing down blocking notation.  An example would be best.  Am putting the finishing touches on a PSM handbook.  Will be used by a lot of first time SMs so would love to give them as much information to help them. 

[Didaskalos]

Blocking notation handout attached.  Word format.

[RubCar91]

I know this is too late for the OP, but just in case somebody else has the same question I've uploaded a sample of how I was taught to take blocking notation. You print out the script one-sided so that each page of text has a blank page accompanying it on which you can write your notations. Hope this helps!