I’ve been participating in a book study at Math Coach’s Corner http://mathcoachscorner.blogspot.com/2013/09/welcome-back-to-our-online-book-study.html
The book is Math Sense: the Look, Sound, and Feel of Effective Instruction by Christine Moynihan. Even if you don’t have the book, you will learn something reading the discussion each week. She discusses a new chapter each Monday and usually has some sort of freebee related to the chapter. The author of the book is participating in the discussion too. Check it out.