One popular approach to teacher leadership is to identify certain teachers as particularly successful, then have others learn from them. Collaborative leadership, in contrast, looks at leadership as a quality that anyone can have. In this model, the goal is not to figure out who is best. Instead, teachers share their unique talents and interests…

High school students continue to struggle in algebra, especially in large inner-city schools with underprivileged students. Students are not the only ones skirmishing with algebra. Teachers and school leaders are just as frustrated as they search for answers to complex teaching and learning problems. Two high school principals report the results…