Harvard & Columbia economists find that “… the variations or differences between really good and really bad teachers have lifelong impacts on children.”
“Elementary-and middle-school teachers who help raise their students’ standardized-test scores seem to have a wide-ranging, lasting positive effect on those students’ lives beyond academics, including lower teenage-pregnancy rates and greater college matriculation and adult earnings, according to a new study that tracked 2.5 million students over 20 years.”