o it is not. Just working smarter, not harder. Plan your 1 lesson plan well, teach it well to each class, my students were mostly gao er, so all at the same level, and then enjoy your weekend. What is wrong with that?

1) You are now shifting what you initially said because you don't like being shown up for what you really are. There is a massive difference between 'planning one lesson well' and 'doing the bare minimum to get out quicker'. One suggests spending time and taking care to create a balanced lesson, the other suggests doing as little as possible and getting out as quickly as you can. The first is not what was suggested by yourself when you said you "do the bare minimum for my students because that's all they deserve".

2) You work in a public school, correct? So you may teach in one class anything from 25 to 60+ students? And you have 16 classes of that amount of students that you use a single lesson for? Not creating different levels or intensity of grammar/vocab to take in to account that some classes will be stronger or weaker than others? That not each of those 16 classes will benefit from the same lesson? I have 3 classes learning from the same course book this year, but one is much weaker than the other two, so I structure a completely different lesson for them so they actually benefit from the lesson. This is not creating extra work for myself, it's being a good (not lazy) teacher. And therein lies the difference.