This extensive document has a WHOLE scheme of work with lessons and resources to teach Paper 2 Section B. The scheme focuses on all the text types students could be asked to write in, ranging from:
It also helps students to follow the conventions of texts as well as study the following writing styles:
to advise / instruct
These series of lessons will save you time and well worth the MONEY. Especially as each lesson is routed and differentiated for the different levels in your classroom.