Although middle schools offer far fewer grades than K — 8 schools, Florida middle schools on average enroll 146 more students than their K — 8 counterparts; as a result,
typical grade cohorts are almost three times as large.
Not exact matches
Other research, by Gary Miron, Jessica Urschel and Nicholas Saxton found that a
typical KIPP
grade cohort shrinks by about 30 % between
grades 6 to 8.
The most notable
grade cohort was fifth graders whose Lexile reading performance exceeded the growth expected with
typical instruction by an average of 63 points.