The evaluation system measures teacher and principal effectiveness based on a 100-point scale that is converted into one of four categories in what is referred to as the HEDI scale:
Highly Effective – Growth results are well above state average for similar students
Effective – Growth results are equal to state average for similar students
Developing – Growth results are below state average for similar students
Ineffective – Results are well below state average for similar students
Educators in the “developing” and “ineffective” categories will be required to participate in improvement plans.
In calculating the totals during the 2012-13 school year:
—60 points are based on a number of potential options: classroom visits, parent surveys, rubrics, negotiated options and/or classroom observations.
All teachers must be formally observed at least once per year. There also will be a number of unannounced mini-observations throughout the year.
—40 points are based on student growth and achievement further divided into two, 20-point scores:
First 20 points: For English Language Arts and math teachers in grades 4 through 8, the state will provide a score based on student progress and growth on state exams.
All other teachers must develop Student Learning Objectives (SLOs: academic goals for a teacher’s students that are set at the start of a course). They represent the most important learning for the year — or semester. They must be specific and measurable and aligned to common core, state or national standards, as well as any other school and district priorities.
“Growth” is measured by administering pre-assessment tests at the beginning of the year to collect baseline data and an end-of-year assessment given to measure student growth over time. Teacher growth scores are calculated based on the growth of each student on state assessments from year to year, as compared to similar students.