What makes a good teacher?

It is difficult to agree upon, define, and measure exactly what constitutes good teaching. economists (Chetty, Friedman,& Rockoff, 2012) followed elementary and high school s 20 years. They defined good teaching as those teachers who raised children's scores on Results of their study indicated that good teachers not only raised achievement score te value in other ways to their student's lives, such as long-lasting academic and financial strong positive correlation between 'value-added teaching" and financial gain at age 28. "value-added" teachers not only did better on achievement tests but made more money