The trend in teacher evaluation in recent years has focused on how educators improve students’ academic performance through test scores. But this method often doesn’t take into consideration that some teachers have more difficult students than others, or that not all students are good at taking standardized tests. In addition, teacher observation evaluations by administrators can be biased.
In 2015, teacher evaluations in 43 states included student achievement as part of the evaluation under the No Child Left Behind Act. Now, under the Every Student Succeeds Act, states are allowed to create their own teacher evaluations.