Math -- which for many students brings to mind previous struggles and low self-confidence -- is ideal for working on character education because it involves the development of the person, not just a calculation skill, writes Mona Iehl, a Chicago fifth- and sixth-grade math teacher, coach and creator of the "Honest Math Chat" podcast. In this article, Iehl explains how to use the ECHO acronym -- empathize, cultivate, honor and open -- to help students learn to solve problems in math and in the larger world.