Shanker Blog » Do Top Teachers Produce "A Year And A Half Of Learning?"

Shanker Blog » Do Top Teachers Produce "A Year And A Half Of Learning?":

Do Top Teachers Produce “A Year And A Half Of Learning?”

by Matthew Di Carlo

One claim that gets tossed around a lot in education circles is that “the most effective teachers produce a year and a half of learning per year, while the least effective produce a half of a year of learning.”
This talking point is used all the time in advocacy materials and news articles. Its implications are pretty clear: Effective teachers can make all the difference, while ineffective teachers can do permanent damage.
As with most prepackaged talking points circulated in education debates, the “year and a half of learning”