In addition to Maryland students’ performance score report, Maryland State Department of Education released the teacher rating data for last school year.
Here’s a link to the page with the data:
If you add up the numbers in the datafile, (http://marylandpublicschools.org/tpe/TPESchoolTeacherDetailFile10232015.xlsx) you will see that only 155 or so teachers in PGCPS were rated Highly Effective, out of over 8000. This is a drop from 570 or so from last year according to PGCPS Teachers who have been following this. (http://marylandpublicschools.org/MSDE/programs/tpe/docs/TPE_Teacher_LEA_School_Detail_File.xlsx)