FROM BECKY: As requested from a beautiful family I worked with recently, here is a clear and simple way to track your child’s interactive attention span.
When your child is in a game/activity/interaction with you and they walk away but are not yet focused on anything else, call them back to the game (e.g. “Where are you going?”, “Come back here”, etc). If you try calling them back two consecutive times and they come back then you can continue that same game and track it all as one interaction. If, however, they do not come back but go onto something else or become exclusive, then that interaction is over.
This guideline is taken from the third edition of The Son-Rise Program Developmental Model. This has been shown to be the most effective and simplest way to work on tracking interactions.
Have fun with those games!