The ESL curriculum in an ESL pull out model could be hard to visualize. Should we support the content? should we teach just English? Where do I start? Is your current curriculum non existing, outdated or not functional? How can I keep continuity when I do not know when to start?
Older learners? 4th, 5th middle school? if they are newcomers/beginners where do I start? The sequence is clear and can be easily correlated with the content.
And what about Math and ELA? How am I going to support the language of the other subjects?
WIDA? Keep in mind it is a pull out model it can be efficient differently.