The House members of the Tennessee legislature voted unanimously to reduce the role of test scores in teacher evaluations, at least temporarily. Controversy continues about whether teachers and other school staff should be evaluated by the scores of students they don’t teach. (Note: readers, please tell Andrew Cuomo that other states are reducing the role of test scores, not increasing them.)

A bill that temporarily would alter the amount that student test score growth impacts teacher evaluations in Tennessee passed unanimously in the House Thursday. But first, lawmakers debated the merits of a system that grades teachers based on scores in subjects they don’t teach.
The proposal, brought to the legislature by Gov. Bill Haslam’s administration, now awaits consideration by the full Senate.
The bill proposes to phase in the weight of test scores as the state transitions to its new assessment, called TNReady, which will be rolled out during…