Re: Teaching ESL general advice needed ?
I'm afraid I don't know the answers to your specific (not general) questions either but I do have a request to make. Your profile shows that you are a native English speaker and, as such, learners on this forum will read your posts and believe that they contain correctly written English. On that basis, it would be much appreciated if you would go back into your first post and edit it - capitalise "I" throughout, make "understatement" a single word, add the missing punctuation etc. Thanks.
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.