There are approximately 1,059,000 high school teachers in the United States, according to a 2007 estimate.
There are approximately 90,000 members of NCTM.
I have 87 people listed under my math teacher list on Twitter.
I have about 50 blogs listed in my “Math Teacher” folder of Google Reader.
While I value those I converse with on Twitter and what I learn from what y’all write, I have lately come to realize that my view of what “everybody” knows/has read is highly distorted.