Hamilton, Shelby and Davidson Counties receive lowest TVAAS score

Eighth grader Aric Moses (center) works on a writing exercise in Carl Knight Jr.'s reading and language arts class last year. Dalewood Middle School is one of several iZone schools in the Hamilton County System working to improve test scores.
Eighth grader Aric Moses (center) works on a writing exercise in Carl Knight Jr.'s reading and language arts class last year. Dalewood Middle School is one of several iZone schools in the Hamilton County System working to improve test scores.

Hamilton County Schools is one of three major Tennessee school systems that received the lowest possible composite score on an annual state assessment that measures student growth.

The Tennessee Value-Added Assessment Scores measure student growth year over year by looking at student performance in five subject areas: literacy, numeracy, literacy and numeracy, science and social studies.

Student growth in each subject for the 2016-2017 school year was scored from 1 to 5, with 5 being the highest. With the exception of literacy, which earned a 5 and showed improvement "significantly above expectation," Hamilton County Schools received a 1 in every category.

Shelby County and Davidson counties also both received a 1 overall. Shelby received a 1 in every category, while Davidson managed a 3 in literacy and a 4 in social studies.

On the other end of the spectrum, Knox County received a 5 in every category. In total, 55 of the state's 141 school districts received a composite score of 5, while 47 districts received a 1.

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