Just a note about the name of this website MEZZO MATH.
I teach middle school math.  MEZZO is another word for middle. 
I believe that middle school years is an important time in a person's life.
The middle school years are time of bridging from dependent on other to independent.  
I also believe that this the time when students are bridging from concrete math topics to abstract content.  The math that is taught that I teach in 8th grade builds a foundation for al of the high school courses.  So just like this is an important time in one's life, the math taught at this time is critical for future courses.