Curious if anyone has any helpful hints on how to integrate the two texts?  Writing and Grammar and the Literature book for 7th and 8th grades?  

I actually have not taught grammar independent of teaching writing in a very long time (30 year veteran teacher) but have taught in the style of Writing Workshop most often.  Teaching grammar along side authentic writing by students.  Teaching grammar separately is a challenge for me and feels very disconnected from student writing.  I have often used literature and student writing side by side, literature as a mentor text to help students improve their own writing skills. 

Any suggestions or help that you could offer would gratefully accepted!