@ecsd
As you say, if our explanation seems pointless and overexplain same thing needlessly, it will came from that. The skills required in ESL class is not only the linguistic aspect such as grammar and vocabulary but also how we construct the logical structure on which discussion can based. Though such analysis is stereotyped, it makes sense for me. I believed “Yes, this is the topic sentence Ms. X longed for, finally I wrote!”, but Ms. X said “No, it’s not topic sentence” and shook her head again…