Letter Grades are based on student achievement, academic growth, growth of the highest need students, and college/career readiness. The TN DOE began grades in the 22-23 school year. LHS has been rewarded the highest grade (A) the following years: 22-23, 23-24, 24-25.

Reward School recognition is given to schools with high levels of performance across certain indicators. LHS has been a Reward School for the following years: 2017-2018, 2018-2019, 2021-2022, 2023-2024, 2024-2025.

The TN DOE ranks schools based on students making substantially more progress than the standard for academic growth. Levels are 1 (lowest)- 5(highest). LHS has been a Level 5 school overall the following years: 2013, 2014, 2015, 2017, 2018, 2019, 2022, 2023, 2024, 2025.

Level ranking for College and Career Readiness reflects students' preparedness for post-secondary education or employment. This is part of the overall Level of Effectiveness ranking.

Level ranking for Student Achievement reflects student performance of End of Course testing. This is part of the overall Level of Effectiveness Rating.

Growth for Highest Need Students measures how effectively schools improve the academic performance of students in the bottom 25% of the previous year’s state assessments.