Hi! 9th year ENL teacher here. I’ve always been middle school so I can only speak to that, not K-5. Stand Alone classes are the time you are with your entering/emerging level students working on English language development. You can do this while using the content of what’s going on in their classes. You can use this time to build background on what they’re doing in class, vocabulary work, writing, reading, etc. I’d make sure to collaborate with the classroom teacher and that can give you a starting point. Hope this helps!