I would suggest looking over WIDA and Colorin Colorado resources to guide your approach in addition to consulting your school's ESOL liaison to ensure that you are giving your ELL students an equitable chance to demonstrate their mastery of objectives. Depending on their proficiency level, assessments should be modified to meet their english language proficiency level. Doing this will ensure that all students are being assessed on the same learning goals, but are able to perform to their skill level, just like modifying assessments for students with 504s and IEPs.

When assessing ELL students, it's important to make sure the tests are accessible while still evaluating their understanding. You can provide language support like simplified instructions, visual aids, or word banks to help with terminology. It’s also helpful to allow extra time for them and offer opportunities for verbal explanations if needed. The goal is to make sure the test reflects their knowledge of the content, not just their language skills. You can also work closely with the ESOL team to ensure your assessments are fair and appropriately modified.