Nagesh English World

W e take for it granted that we can fly from one side of the world to the other in a matter of hours, but a century ago this amazing ability to race through the air had only just been discovered. What would the Wright brothers—the pioneers of powered flight—make of an age in which something like 100,000 planes take to the sky each day in the United States alone? They'd be amazed, of course, and delighted too. Thanks to their successful experiments with powered flight, the  airplane is rightfully recognized as one of the greatest inventions of all time. Let's take a closer look at how it works!

Ten Roles for Teacher Leaders The ways teachers can lead are as varied as teachers themselves. Teacher leaders assume a wide range of roles to support school and student success. Whether these roles are assigned formally or shared informally, they build the entire school's capacity to improve. Because teachers can lead in a variety of ways, many teachers can serve as leaders among their peers. So what are some of the leadership options available to teachers? The following 10 roles are a sampling of the many ways teachers can contribute to their schools' success. 1. Resource Provider Teachers help their colleagues by sharing instructional resources. These might include Web sites, instructional materials, readings, or other resources to use with students. They might also share such professional resources as articles, books, lesson or unit plans, and assessment tools. Tinisha becomes a resource provider when she offers to help Carissa, a new staff member in her second career, set