― Description : ∙ Teachers play a crucial role in the development of today's youth. A good teacher can inspire a student to strive for future successes. Many teachers encourage students to further study a subject that may eventually lead to a career. In 2009, about 7.2 million teachers helped to educate America's youth. By 2020, that number is expected to climb to about 8.3 million. ∙ Certain characteristics set great teachers apart from average educators. Great teachers are [...].