This presentation explores how English as an Additional Language (EAL) assessments inform and enhance teaching practice. It highlights the role of the initial intake assessment in identifying students’ language proficiency and learning needs, as well as the use of ongoing benchmarking assessments in monitoring progress. Together, these assessments provide teachers with valuable insights that guide instructional planning, differentiation, and targeted support. The presentation will also connect these assessment practices with the use of High Impact EAL strategies to ensure students develop both language proficiency and academic success.