In fact, I and some colleagues of mine are terribly suffering from this textbook. I wonder how can teachers in Morocco cope with it. It does not help us to facilitate things to students. I would like you give us some insights into this Insights. To make a basis to this discussion I and a colleague of mine have just written written some reflections about how grammar and functions are introduced in this book. I am glad to make it at your disposal for further discussions
Reflections on Grammar and Functions as Presented in Insights into English.pdf