The urgent need to help students -- and particularly students who are Black or Hispanic -- recover from the negative effects of the coronavirus disease 2019 (COVID-19) pandemic on mathematics learning and access equitable opportunities in mathematics will require that teachers use every available tool to diagnose student learning needs and identify solutions. Teachers' use of data, including informal assessments, standardized or benchmark assessments, classroom observations, attendance, demographic data, instructional strategies on standards-aligned content, and growth reports, could be a valuable tool in addressing these challenges. In this report, researchers provide a look at the student data to which Florida mathematics teachers have access and use to identify students in need of support, and whether teachers are adequately supported to use student data effectively in their daily instruction. [For "Learn Together Surveys. 2022 Technical Documentation and Survey Results. Research Report. RR-A827-9," see ED626092.]