a book called Consumer Economics and Personal Finance. It's exactly the kind of book you're talking about. I bought mine from the McDougell-Littell website. In the book, it says you can view it at www.nextext.com, too.
My kids have both really enjoyed this book. The reading is light, the chapters manageable, and it speaks to the teenager, not the adult/teacher teaching the course. My kids have been able to do this course without much supervision. I've added in a couple of projects for interest.
HTH.
Bev