After a single year with teachers who ranked in the top 10% in effectiveness, students scored an average of 17 percentile points higher in English and 25 points higher in math than students whose teachers ranked in the bottom 10%. Students often backslid significantly in the classrooms of ineffective teachers, and thousands of students in the study had two or more ineffective teachers in a row.posted by DreamerFi at 8:18 AM on August 17, 2010 [1 favorite]
« Older Justin Bieber's 'U Smile', played 800 time slower.... | Tests indicate that imported “... Newer »
This thread has been archived and is closed to new comments
posted by DU at 4:46 AM on August 17, 2010 [3 favorites]