Slacking or supporting? You be the judge.

I sat down a bit ago to quickly check email and facebook and Google Reader and Pinterest before we started school  (we usually start around 9:30).  My plan was to start close to "on time" (which is a flexible concept in homeschooling).  As I sat here at the computer, I could overhear my two sons in my oldest son's bedroom.  They have a box from the recycling bin and from what I can tell are planning to add that box to a box my husband has told them they can have on Friday (?) to build something very cool.  About 10 minutes ago I told them as they hurried past me, seriously discussing their "plans", that we would start school in about 10 minutes.  They gave the obligatory "OK" as they rushed on to continue their scheming. Since they do not ALWAYS see eye to eye or get along, I am hesitant to break up their collaboration to start school.  Even as I type these words at this moment, they have come out and my littlest is showing me a drawing of their plans which he has sketched with red marker on white paper.  He is now asking me where we can buy springs.  I am enthralled and captivated when they work together like this.  Little guy is now out on the deck and I can hear him telling his brother, "It's good.  We can go to the hardware store and buy springs for the launcher.  It's really good......it will be so easy."  Now he is calling to me "Hey, Mommy!  Look how tall the Nile River is getting.  The grass here is really fresh (he slides open the screen to tell me this)."  Though I feel a teeny tiny bit like a slacker for not calling them together to being "school", the larger part of me feels grateful that I can support their interactions by allowing them to unfold naturally.  I am fully aware that the  natural unfolding may soon result in disagreement which may or may not take the form of angry words and/or punches.  THEN............it will be time to start school.