In their plans to carry out the Every Student Succeeds Act (ESSA), states universally recognize what New Leaders has long known: "leadership changes everything." In fact, every single state has committed to directing some portion of its federal funding into investments in leadership--from teacher leaders to principals and…

The teaching of mathematics, which arguably is so abstract as to transcend place and community and even culture (according at least to a Platonic view of mathematics), will seem to some observers particularly ill-suited to instruction in place- or community- or culture-based approaches. Nevertheless, current thinking in mathematics education,…