npr: &ldquo;From Marbles In A Coffee Can, Lessons About Life, And Math&rdquo; via Claudio Sanchez (And take a look at Juana Summers’ &ldquo;Glossary: Marbles Edition&rdquo;, too!) Image: Sarah Tilotta/NPR

npr: “From Marbles In A Coffee Can, Lessons About Life, And Math” via Claudio Sanchez (And take a look at Juana Summers’ “Glossary: Marbles Edition”, too!) Image: Sarah Tilotta/NPR

npr: “From Marbles In A Coffee Can, Lessons About Life, And Math”