This is a printable of the Standards for Mathematical Practices from the Common Core Standards, re-written in kid-friendly terms. I keep this posted in my classroom, and refer to it when the students are working. They know what "good mathematicians" do, and we talk about how they are working toward these goals. Enjoy!
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License