I'm using the World Studies: Africa by Prentice Hall, which appears to be the newest update. In week 28, the student reads pages 11-29 as primary resource. In the discussion dialog though for week 28, we are to discuss early African culture, Bantu migration, African traders, etc. But on looking at the book, this is covered in week 29's readings (pages 34-50) rather than week 28's readings, which covers mostly geography and climate. Is there an updated discussion dialog I don't have? I have DE. I'm confused here, and my student is puzzled on discussing what he hasn't read yet.