When professional learning is interdependent, a teacher's individual success hinges on the efforts of the entire team. Leadership experts Jenni Donohoo and Ann Mausbach explain why that's a good thing.

This article describes a mathematics lesson taught by a 5th grade teacher who engages her class in an in-depth examination of one student's incorrect solution to a problem. Because the teacher consistently asks her students to devise alternative calculation strategies and explain how those strategies work, the students have come to expect that…

To make sense of the complex information taught in the upper elementary grades -- and to understand the language that increasingly appears in high-stakes tests--students must be proficient in academic English. English language learners are at a serious disadvantage. Two word problems in mathematics illustrate the difficulties that these students…