I'm a pre-service teacher as well! With MLLs, it's important to have an idea of what they already know so that you can have them connect their background knowledge with your content objectives. Modeling expectations and clearly stating directions are key. It's also important to have them interact with other students in the classroom in order to strengthen their learning experiences - this also helps to build a classroom community by welcoming students of all culture and language backgrounds. Provide a variety of instructional strategies and assessment alternatives as well.
Hopefully this resource helps! - https://s3.amazonaws.com/nstacontent/ss0409_28.pdf?AWSAccessKeyId=AKIAIMRSQAV7P6X4QIKQ&Expires=1571023898&Signature=rUaG3TmGUKXnZ9I6eigyQ2qesXk%3d