<P> The American Federation of Teachers' teacher salary survey for the 2006 - 07 school year found that the average teacher salary was $51,009 . In a salary survey report for K - 12 teachers, elementary school teachers had the lowest median salary earning $39,259 . High school teachers had the highest median salary earning $41,855 . Many teachers take advantage of the opportunity to increase their income by supervising after - school programs and other extracurricular activities . In addition to monetary compensation, public school teachers may also enjoy greater benefits (like health insurance) compared to other occupations . Merit pay systems are on the rise for teachers, paying teachers extra money based on excellent classroom evaluations, high test scores and for high success at their overall school . Also, with the advent of the internet, many teachers are now selling their lesson plans to other teachers through the web in order to earn supplemental income, most notably on TeachersPayTeachers.com . </P> <Ul> <Li> Edith Abbott </Li> <Li> Howard Adelman </Li> <Li> Raymond Macdonald Alden </Li> <Li> Henry James Anderson </Li> <Li> Charles William Bardeen </Li> <Li> Juan Pablo Bonet </Li> <Li> Leib Glantz </Li> <Li> Charles Rollin </Li> <Li> Charles Wedemeyer </Li> </Ul> <Li> Raymond Macdonald Alden </Li> <Li> Henry James Anderson </Li>

Who is one of the following comes under the duties of a teacher