This week I found a new mathematics and education blog dy/dan (it is a math joke, I promise).  A few weeks ago I posted about having math connect with students in the city by embracing graffiti within the school.  They would put graffiti on the walls inside and out of their school, however they took data of students in the school and made graphs on the walls and turned this data into art.  Now on this blog, Mr. Dan Meyer writes about Coral Connor's students who creates 3D chalk charts to show that they understood trig functions.  NOW THIS IS NEAT!  Not only is it connecting art and mathematics, and not only is it turning everyday math into hands on math, but it is giving the teacher a great way to evaluate his students knowledge on the subject matter without testing them!  YOU SAID WHAT NOW? (Sounds like a red flag to the common core if you ask me - OH WELL!)  Testing isn't everything.  In math, people have always struggled because people often think the only way to evaluate ones understanding is to test them... news flash... you are wrong.  dy/dan just showed you otherwise!