Don't discourage the maintenance of home languages. Encourage the parents of your students to develop literacy skills in native language. Whatever your students learn in their home languages will eventually be transferred to English. Allow translation time Newcomers are translating the language they hear back to their native language, formulating a response and then translating that response into English. Allow extra time for this translation.
Most newcomers learn best kinesthetically.
Don t expect them to sit and listen to incomprehensible auditory input for long periods of time. Use gestures, drawings, sketches, drama, or other visual support. Give students hands-on activities to complete. Let them know that you appreciate their efforts. Acknowledge their contributions frequently and point out the progress newcomers in your class have made.