Identifying Effective Teachers Policy
Tennessee's probationary period for new teachers is five years. To earn tenure, probationary teachers must receive an overall performance effectiveness rating of above expectations or significantly above expectations during the last two years of the probationary period.
A tenured teacher who receives two consecutive overall ratings of below expectations or significantly below expectations may be reverted to probationary status until he or she receives two consecutive ratings of above expectations or significantly above expectations.
Because Tennessee's teacher evaluation ratings are centered primarily on evidence of student learning (see "Evaluation of Effectiveness" analysis), basing tenure decisions on these evaluation ratings ensures that classroom effectiveness is appropriately considered.
Ensure that sufficient evidence is considered in tenure decisions.
To ensure that tenure decisions are based on sufficient evidence of teacher effectiveness in the classroom, Tennessee should consider basing decisions on cumulative evidence of performance, rather than just two years' ratings.
Tennessee recognized the factual accuracy of this analysis.
Tenure should be a
significant and consequential milestone in a teacher's career.
The decision to give teachers tenure (or permanent status)
is usually made automatically, with little thought, deliberation or
consideration of actual performance. State policy should reflect the fact that
initial certification is temporary and probationary, and that tenure is
intended to be a significant reward for teachers who have consistently shown
effectiveness and commitment. Tenure and advanced certification are not rights
implied by the conferring of an initial teaching certificate. No other
profession, including higher education, offers practitioners tenure after only
a few years of working in the field.
States should also ensure that evidence of effectiveness is
the preponderant (but not the only) criterion for making tenure decisions. Most
states confer tenure at a point that is too early for the collection of
sufficient and adequate data that reflect teacher performance. Ideally, states
would accumulate such data for four to five years. This robust data set would prevent
effective teachers from being unfairly denied tenure based on too little data
and ineffective teachers from being granted tenure.
Tenure: Supporting Research
Numerous
studies illustrate how difficult and uncommon the process is of dismissing
tenured teachers for poor performance. These studies underscore the need for an
extended probationary period that would allow teachers to demonstrate their
capability to promote student performance.
For
evidence on the potential of eliminating automatic tenure, articulating a
process for granting tenure, and using evidence of effectiveness as criteria
for tenure see D. Goldhaber and M. Hansen, "Assessing the Potential of Using Value-Added Estimates of Teacher Job Performance for Making Tenure Decisions." Calder Institute, February 2010, Working Paper 31.
Goldhaber and Hansen conclude that if districts ensured that the bottom
performing 25 percent of all teachers up for tenure each year did not earn it,
approximately 13 percent more than current levels, student achievement could be
significantly improved. By routinely denying tenure to the bottom 25 percent of
eligible teachers, the impact on student achievement would be equivalent to
reducing class size across-the-board by 5 students a class.
For
additional evidence see R. Gordon, T. Kane, and D. Staiger, "Identifying Effective Teachers Using Performance on the Job," The Hamilton Project
Discussion Paper, The Brookings Institute, April 2006.